Question

How do you subtract Ploynomials?

Answer 1

An example would be good. So, write two polynomials that you want to subtract and I can show you how to do it.

Answer 2

Let me give you an example here. Suppose you have \(p(x)=3x^2-2x\), and \(q(x)=x^2+2x-1\), and you're asked to find \(p(x)-q(x)\).

Answer 3

First thing you should do here is to multiply each term of q(x) by \(-1\), that means to change the sign of each term. So \(-q(x)=-x^2-2x+1\). Now add this to \(p(x)\) by adding the coefficients of each like terms.

Answer 4

so sorry. I hav to leave.

Answer 5

\(3x^2-2x\)
\(-x^2-2x+1\)
---------------
\(2x^2-4x+1\)

Answer 6

Haha that's fine.

Answer 7

I was acutually thinking of somethign like Simplify (x3 + 3x2 + 5x – 4) – (3x3 – 8x2 – 5x + 6)

Answer 8

OK. First multiply each term of the second parenthesis by -1, and then just add the like terms.

Answer 9

ooh
i get it +- = -

Answer 10

(x3 + 3x2 + 5x – 4) + (3x3 + 8x2 + 5x - 6)

Answer 11

Your final answer should be \(-2x^2+11x^2+10x-10\).

Answer 12

?? wouldnt it be 4x^3

Answer 13

ooh nvm. I see. I becomes +-3x^3
sry. My error.

Answer 14

Exactly :D

Answer 15

THANK YOU SOOOOOO MUCH. I have a big test tom. I just need a few more things. I know how to add,multiply, and now subtract ;) polynomials. Now to factor them completely.

Answer 16

OK. Write down a problem!

Answer 17

Could you completely factor this equation please?
\[4x ^{3}-44x ^{2}+96x\]

Answer 18

1 sec ill make a new post