I'm in modular class I don't even understand a thing thnx for all the video who looks like this
@junnediaz2278
3 жыл бұрын
Yow same here HAHAHA just keep it together we will get through this
@junnediaz2278
3 жыл бұрын
@p s it's basically like test papers but thicker and more complex, it's like a self teaching book and it's way harder trust me HAHAHAAHAHHA
@anisha278
4 жыл бұрын
when you can't understand your lesson in your online class, so you go here instead
@mathematechxblackboard1942
4 жыл бұрын
If you have math problems you can't solve, you may post it too by replying here. I may not be able to answer all questions posted(1 question per person per day), but I will find time to share my knowledge. :)
@zeinamrican601
Жыл бұрын
@@mathematechxblackboard1942 thanks Your follower from Syria in the middle east
@marklumauig
Жыл бұрын
@@mathematechxblackboard1942 how to solve f(x)/g(x) given f(x)=15x¹⁵ , g(x)=3x⁹?
@marklumauig
Жыл бұрын
@@mathematechxblackboard1942 how to solve f(x)/g(x) given f(x)=15x¹⁵ , g(x)=3x⁹?
@mathematechxblackboard1942
Жыл бұрын
@@marklumauig @kram Hi! f(x)/g(x)= 15x^15/3x^9 . As you can see, you have numbers and x with exponents. for the numbers(15 and 3), divide 15 by 3 so it's 5. for x^15 and x^9, this becomes x^6. From laws on exponents, whenever you divide x containing exponents, subtract their exponents. Hence, x^15/x^9 means x^(15-9), so it's x^6. Therefore, the answer is 5x^6.
@denniscuesta7009
3 жыл бұрын
Thanks bro, you saved me from breaking my head against the wall Floor gang member is pleased
@ansarm350
2 жыл бұрын
You explained very well.thank you
@oiboi1893
5 жыл бұрын
Tbh i usually get stuck at the breaking down part
@ashley2819
3 жыл бұрын
i just finished watching the video and boi i thought u were pertaining to breaking down ~ mentally ~ 😭😭😭😭 but i agree with u lmfao
@dheasacro7869
Жыл бұрын
hays tatambay na nga lang dito pa talaga
@user-it3nh6zx6w
Ай бұрын
How to know if the function is not factorable? If it is not factorable mean you dont have to solve the problem?
@kyoshi2239
19 күн бұрын
the denominator's result can't be 0, if it became zero, it isn't possible for it to be factorized
@ishaanarya7408
4 жыл бұрын
Great explanation. Thank you
@rentsuso4671
4 жыл бұрын
I found out that your voice sounds like the one who was teaches us gApps in Apec. This school year po.
@jean7064
3 жыл бұрын
thank youuu it helps me a lot since i forgot this lesson in my gr 9 dayss
@malacadjohnlhorenza.1714
4 жыл бұрын
Thnx much sensei
@ewunetumerera9388
Жыл бұрын
Thank you so much, but I still feel that there is a simplest way to divide high degree polynomials in to factors of binomials .
@jannahbuenavista4812
3 жыл бұрын
This will help thanks a lot
@peony8928
4 жыл бұрын
KZitem is OurTeacher
@geraldlomotos1220
2 жыл бұрын
8:56 the negative two x squared - positive 9 x squared why your answer is negative 11x squared it supposed to be positive 7 x squared right?
@rexrommelgerarcas932
Ай бұрын
Same thought
@Lazzhaa
3 жыл бұрын
Thank you, I was really confused lol
@bernadetteedol4643
4 жыл бұрын
Modular learning. I understood nothing. Had to search on KZitem. Thank you.
@movieedition1878
4 жыл бұрын
-8+ 114 is equals to 106 right??? not -122?
@mathematechxblackboard1942
4 жыл бұрын
Hi! You should be subtracting the two numbers, hence, it should be -8-(+114)=-122. I should have made it like this to make it clear: (38x-8)-(38x+114) =38x-8-38x-114= -122
@lesliesoto8352
2 жыл бұрын
Thank you
@neilaldwingregorio4282
4 жыл бұрын
wow! for the first i can actually understand math hahhaah
@ericzonmadarang7729
3 жыл бұрын
8:11, -2x²+9x² is equal to -11x² I think it was wrong it should be 7x² because, the rule of addition and subtraction when it comes to sign is different sign subtract and copy the biggest sign.
@mathematechxblackboard1942
3 жыл бұрын
Hi! it should be -2x^2 - (+9x^2) so it become -2x^2-9x^2 so it is really -11x^2.
@ericzonmadarang7729
3 жыл бұрын
@@mathematechxblackboard1942 Ah okay I get it.
@dennisgono208
3 жыл бұрын
How about this sir p(x)= 2x² + 5x - 3 ; if p(x+1) "evaluating function"
@mathematechxblackboard1942
3 жыл бұрын
place "x+1" to every x in p(x). hence, it becomes 2(x+1)^2+5(x+1)-3 and simplify. copy and paste 2(x+1)^2+5(x+1)-3 in wolfram alpha(search in google or click www.wolframalpha.com/) to see the simplest form . Always remember, evaluation is basically substitution. so if it say p(z), change x with z. if it says p(2x), change x with 2x. it is always like this. just like numbers, when looking for p(2), you replace x with 2 and simplify.
@lojy4513
3 жыл бұрын
What would i do if they can't be simplified?
@itsyourboiDiazo
Жыл бұрын
Sir can you point po sana kung anong nga number inaadd mo kase hirap din po kase kung sasabihin lang. Or add arrow po kung San Yung e aadd or e maminus. Ty
@keithrinaorlanda4526
4 жыл бұрын
If the g(x)'s first term is a negative, do I need to change it to positive?
@mathematechxblackboard1942
4 жыл бұрын
Hi Keithrina! What do you mean by that? Can you give me a specific expression so I would better understand your question?By the way, are you from Pangasinan? Your last name is a common name in a place in Pangasinan.
@keithrinaorlanda4526
4 жыл бұрын
I encountered a problem in division of function wherein, x²+3 is fx, and -2x+6 is gx, but when it was substituted in the formula fx/gx, -2x+6 became 2x+6. P. S I'm not from Pangasinan😅
@vellomeilldulaca219
Ай бұрын
thanks😢
@irisesmael5077
4 жыл бұрын
how it become x-3/x+6??
@johnpauloamadeo3290
2 жыл бұрын
-2 + 9 = 7? But why is it -11 I'm confused.
@mathematechxblackboard1942
2 жыл бұрын
Sorry, I should have made it clear that it is -2 minus (+9). When you work on that step, the operation is subtraction. I should have placed the expressions inside the parentheses to make it not confusing.
@angelagraham467
3 жыл бұрын
What about a problem that says this... f(x) = x² - 8x + 15 and g(x) = x - 5 Find (f ÷ g)(x) and express the result in standard form
@mathematechxblackboard1942
3 жыл бұрын
Hi Angela! (f÷g)(x) means f(x)/g(x) so it is equal to (x^2-8x+15)/(x-5). Factor numerator and you get (x-3)(x-5)/(x-5). cancel both (x-5) and you get (x-3). You could also use long division but not entirely needed as it is easier to factor in this case. Use long division only for cube and up.
@angelagraham467
3 жыл бұрын
@@mathematechxblackboard1942 Thank you! I actually got that answer but wasn't feeling confident in how I got there so until you verified it I was unsure. You just helped me lots!
@bernardinobathan7759
5 жыл бұрын
If the teacher ask to simplify i will use the synthetic right?
@mathematechxblackboard1942
5 жыл бұрын
Bernardino bathan , yes and note that synthetic division is best to use when the numerator is a polynomial and the divisor is a binomial. If the expression is easy to factor in the numerator, like trinomials, then use factoring first.
@sandradelara1854
4 жыл бұрын
Hello! I need help with something. g(x)/f(x) f(x)= 2x-3 g(x)=5x-1 It also asks for the restriction for x?? Thank you! :’)
@mathematechxblackboard1942
4 жыл бұрын
Hi! Follow how it is written. It says f(x)/(g)x so form the fraction as 2x-3/5x-1. The restriction is based on the denominator 5x-1 as it cannot be zero. Zero denominator is undefined. Think of what number will make 5x-1 equal to zero. I know you can find this. Solve 5x-1=0. The answer to this is the restriction.x cannot be equal to what makes 5x-1 equals 0.
@sandradelara1854
4 жыл бұрын
@@mathematechxblackboard1942 Thank you so much for your help!!
@jashleicanarias8149
4 жыл бұрын
need help!! who knows the answer here: it is division btw f/g (x) f(x) = 3x-2 g(x) = x^2 + 2x - 3 i dont understand it lmao iT reAlly hUrts
@mathematechxblackboard1942
4 жыл бұрын
f/g x= (3x-2)/(x^2+2x-3) = (3x-2)/(x+3)(x-1)
@dungeonquest8210
2 жыл бұрын
Paano ho nangyari na -2 + 9 = -11? tapos (-) pa e di ba ho (+)positive dapat na yung 11 kasi greater value ang 9 sa 2? tapos po +5x at -33x = 38x? bakit po positive na siya e di ba dapat negative yun at magiging subtraction yon at ang answer ay magiging negative since bigger than 5 ang 33?
@mathematechxblackboard1942
2 жыл бұрын
the default operation is subtraction, hence it should be -2- (+9)=-2-9=-11 and +5x - (-33x)=5x+33x=38x.
@rexrommelgerarcas932
Ай бұрын
I came to the comment section to see this thank u i understand it kudos ⚪@@mathematechxblackboard1942
@JovannyMaquilan
Жыл бұрын
5-33 = 38? bakit po naging 38? diba dapat -28 po?
@leamortonvaldez596
Жыл бұрын
I was also confused like you do on that part but here: If two numbers have the same sign, either if its same negative or same positive, the answer will always be positive. So, -11×-3 = 33 To simply understand, same sign = positive answer Different sign = negative answer
@mathematechxblackboard1942
Жыл бұрын
Hello. In my solution, naka indicate 5- (-33), so that is the same as 5+33, since the "minus negative" turns into a "plus". Basta lagi tandaan, kapag long division, you subtract so careful sa pag subtract ng negative number. I hope I answered your question. Sorry for late reply.
@sofiabautista2945
4 жыл бұрын
How about x+2/ x-2 ??
@mathematechxblackboard1942
4 жыл бұрын
Hi! That is already the simplest form. No division needed.
@vent1111
2 жыл бұрын
hello there, may i ask, how do you divide f/g(-1) if f(x)= 6x^3 + 23x^2 - 8x - 7 and g(x) = 3x - 2 i've been stuck on this question for almost an hour :'))
@mathematechxblackboard1942
2 жыл бұрын
Hi! Do you still need to find the answer for this? Sorry for the late response.
@vent1111
2 жыл бұрын
@@mathematechxblackboard1942 I'll prolly just use it for reference but it would be nice :DD
@mathematechxblackboard1942
2 жыл бұрын
@@vent1111 , for this one, since it says (f/g)(-1), which means you are finding the value of f/g when x=-1, you can go straight to substituting -1 on the x of each function, f and g. So find f(-1) and find g(-1) then divide the resulting values. f(-1)=18 and g(-1) = -5 so the the value of (f/g)(-1)=18/-5 or -18/5.
@saito-qr4wu
Жыл бұрын
Sir pano po naging positive 38?
@streamermode5224
3 жыл бұрын
wrong answer on long division try seeing the signs first thats why many students got wrong becuase they dont go to see the signs if it is positive or negative
@mathematechxblackboard1942
2 жыл бұрын
please check it again. I think there is no error. :)
@almadinjohnchristophers.9014
3 жыл бұрын
I hope you cans solve problems with only 2 expressions
@mathematechxblackboard1942
3 жыл бұрын
Hi Christopher! You may type in an actual problem that you need to understand how to answer. Thanks!
@Palo_Azul
3 жыл бұрын
F(x)= 3x+8 and G(x)=3x²+2. Find G(4)/F(4).
@mathematechxblackboard1942
3 жыл бұрын
here :) kzitem.info/news/bejne/upmLmnd6noSFf4o
@Palo_Azul
3 жыл бұрын
@@mathematechxblackboard1942 Thank you for getting back to me!!! In my haste I realized what I was doing wrong! I realized I was adding the 16 and 3 and not multiplying it!
@mathematechxblackboard1942
3 жыл бұрын
@@Palo_Azul You're welcome. :)
@dinapilapil1560
4 жыл бұрын
Need help! g(x)=2x²+5x+2 h(x)=2x²-5x-3 Find (g/h) (3)=? Please help me!
@mathematechxblackboard1942
4 жыл бұрын
Hi Dina! Can you rewrite the g(x)? What is the sign between 2x^2 and 5x? Plus or minus?
@dinapilapil1560
4 жыл бұрын
It's +
@mathematechxblackboard1942
4 жыл бұрын
set up g/h then substitute 3 on both then simplify the value. That is 2(3)^2+5(3)+2 over 2(3)^2-5(3)-3. Answer is 35/0 or undefined since denominator cannot be 0.
@dinapilapil1560
4 жыл бұрын
Thank you so much😘😍
@dinapilapil1560
4 жыл бұрын
@@mathematechxblackboard1942 can you help about this.. What is fuction model of this condition.. 1.Twice the square of a number?
@exuquseme3056
4 жыл бұрын
How do i solve this? Find (f • g) (x) and (g • f) (x) f(x)=x , g(x)= 1/2x+1
@mathematechxblackboard1942
4 жыл бұрын
Hi! is this multiplication or composition? Just to make sure.
@exuquseme3056
4 жыл бұрын
@@mathematechxblackboard1942 it's multiplication
@exuquseme3056
4 жыл бұрын
Oh, my bad it's composition
@mathematechxblackboard1942
4 жыл бұрын
Hi! Here is a similar problem kzitem.info/news/bejne/qImpyGZponSVaI4.
@user-xi9gc8tg8h
11 ай бұрын
Huh? Factoring 6 is 3x1? Lol
@mikeyml7782
3 жыл бұрын
3:08
@Ayieeen16
3 жыл бұрын
How about if the f(x) is a fraction and also g(x) is a fraction too?? Thank you, hope mapansin.
@mathematechxblackboard1942
3 жыл бұрын
Hi Heaven! Could you give me a specific set of functions that you want to see? I will work through the exact functions that you will give me. Thank you.
@Ayieeen16
3 жыл бұрын
@@mathematechxblackboard1942 (f/g) (x) when f(x) = 4x/ 3x - 2 and g(x) 1/x also what if the f(x) = 1+1/x and g(x) =x
@mathematechxblackboard1942
3 жыл бұрын
@@Ayieeen16 Hi! I hope this one will help you understand the idea. kzitem.info/news/bejne/032rmWWYcKKDpGk
@Ayieeen16
3 жыл бұрын
@@mathematechxblackboard1942 thank you po😭❤️❤️❤️❤️
@kirkkong5829
2 жыл бұрын
Pinalitan yung example kase di masagotan HAHAHA
@mathematechxblackboard1942
2 жыл бұрын
I showed different cases. Some expressions are needed to be simplified, some can be written as is. And as a student, you should be able to identify these cases.
@zenmafia7942
3 жыл бұрын
LU2 BOYSS PISOT
@chriseljohndelacruz9763
4 жыл бұрын
How come -2+9 became -11 lololol explain
@mathematechxblackboard1942
4 жыл бұрын
Because it is subtraction, not addition. it shoud be -2-(+9)= -2-9=-11
@jishu1743
3 жыл бұрын
How about this sir: f(x)= 2x³ + x - 3 g(x)= x - 1 g(x)/f(x) With domain po
@mathematechxblackboard1942
3 жыл бұрын
Hi Samu! Just to be sure, is this 2x^3+x-3or 2x^2+x-3?
@jishu1743
3 жыл бұрын
@@mathematechxblackboard1942 2x^3 + x - 3 po
@charlenecortis3505
4 жыл бұрын
Hi po...uhmmm I can't get the answer of this problem po..(j/g)(-1)
@charlenecortis3505
4 жыл бұрын
J(x)=x³+8 and g(x)=x+2
@charlenecortis3505
4 жыл бұрын
Need ur help po😓
@mathematechxblackboard1942
4 жыл бұрын
Sorry for the late reply. (j/g)(-1)=j(-1)/g(-1)= ((-1)^3+8)/(-1)+2=7/1=7. But if you are looking for (j/g)(x), you have to write the expression (x^3+8)/(x+2) which you still have to divide(or use factoring) to simplify.
@cesjessuke7339
4 жыл бұрын
sir, how about this? F(x)= x^2 + 3x + 2 G(x) = x + 2 1. (F/g) (3) ~ F (x)/ G (x) = F (3)/G (3) So... 3^2 + 3 (3) + 2 / 3 + 2 Ano po sagot po?
@mathematechxblackboard1942
4 жыл бұрын
perform PEMDAS and the answer is 4.
@cesjessuke7339
4 жыл бұрын
@@mathematechxblackboard1942 Tama ako hehe🙃 thank you pooo~~~
@ognayonnapoleonjr.u.9688
4 жыл бұрын
Wala ako naintindihan pota
@RomalynPilar-qr1uf
Жыл бұрын
Pa send po ng sagot
@kuonnkaminie3697
4 жыл бұрын
Bruh need help (F/g)(x) F(X)=4X - 6 G(X)=2X + 8
@mathematechxblackboard1942
4 жыл бұрын
factor out common factor for each function. 4x+6=2(2x+3) while 2x+8=2(x+4) so f(x)/g(x)= 2(2x+3)/2(x+4) then cancel 2 and 2 (numerator and denominator) result is (2x+3)/(x+4). Don't cancel "x". It is not allowed. okay? sorry for late reply.
@latiffaraniaofficial0406
4 жыл бұрын
Sir gdpm po paki help naman po kasi kanina pa kami nah solve hindi makuha namin.....isang mumber na hindi namin masagot ito po g(x)%h(x) given g(x)=x+3 h(x)=4x-8
@mathematechxblackboard1942
4 жыл бұрын
Mary Jane Janiola hi! From how I understand your question, the answer is (x+3)/(4x-8). That is the simplest form. I am curious why you found it confusing.kindly explain your confusion.
@latiffaraniaofficial0406
4 жыл бұрын
@@mathematechxblackboard1942 sir opo pero confusing po.....sir I try to solve but im not sure kung tama po ito.....please correct me if im wrong.....ito po ang solution ko.... given=g(x)=x+3 given=h(x)=4x-8 answer: x+3/4(-8) =x+3/4(x-2) yan po Sir Pablo ang sagot ko.
@mathematechxblackboard1942
4 жыл бұрын
@@latiffaraniaofficial0406 yes, that is correct. by the way I am not sir Pablo. :)
@justinedelacruzcrisostomo8176
2 жыл бұрын
I don't understand you
@mathematechxblackboard1942
2 жыл бұрын
You may ask other questions instead and I will try to explain how to answer it.
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