Question

I need some help factoring out! Please help meh:) Thanx in advance!!:D

Answer 1

\[5x ^{3}-x ^{2}+20x-4\]

Answer 2

have you covered polynomial long division yet?

Answer 3

I'm not used to these types of problems. I have different kinds of problems I used to do and Nope. I haven't.

Answer 4

hmmm

Answer 5

...ahemm let's try to shuffle them maybe.. we don't need to divide

Answer 6

Ok.

Answer 7

These are the problems I've done before:
\[20x^3-15x^2+8x-6\]
I haven't done it without the # in front of the variable.

Answer 8

\(\bf 5x^3-x^2+20x-4\implies 5x^3+20x-x^2-4
\\ \quad \\
(5x^3+20x)-(x^2+4)\implies 5x(x^2+4)-(x^2+4)\)

see any common factors?

Answer 9

Umm..(x^2+4)?

Answer 10

yeap thus \(\bf 5x^3-x^2+20x-4\implies 5x^3+20x-x^2-4
\\ \quad \\
(5x^3+20x)-(x^2+4)\implies 5x{\color{brown}{ (x^2+4)}}-{\color{brown}{ (x^2+4)}}
\\ \quad \\
{\color{brown}{ (x^2+4)}}(5x-1)\)

Answer 11

Hahha!!:D Ok. I was going to ask you if I could solve it and you check my answer. But you already have it solved out. But anyways..Thanx sooo much though. That's the part I was stuck at:D I have two more if you don't mind helping me.

Answer 12

sure, just post anew... so if I dunno, someone else may and we can revise each other

Answer 13

Ok.