Question

using remainder therom 4x^3 - 5x2 -8x+2 find factors

Answer 1

helpp i am taking an exam and i need this asap !!!!!!!

Answer 2

determine if x+3 is a factor

Answer 3

Hmm. I think you mean the factor theorem. You just have to check if -3 is a zero.

Answer 4

using the remainder theorem determine if (x+3) is a factor of 4x^3 - 5x2 -8x+2

Answer 5

Try to check if \(4(-3)^3 - 5(-3)^2 - 8(-3) + 2 = 0\)

Answer 6

Or remainder theorem also may work. They are related terms.

Answer 7

what you did was actually remainder theorem

Answer 8

i dont know how to do both
can u show me step by step until answere pleas?

Answer 9

What I demonstrated is remainder theorem.

Answer 10

this is the problem : using the remainder theorem determine if x+3 is a factor of 4x^3 - 5x2 -8x+2

Answer 11

Do you know synthetic division?

Answer 12

do you know what the remainder theorem is?

Answer 13

no i dont and i need to solve this i dont remember at all

Answer 14

its for a test

Answer 15

i'll let parth do this one

Answer 16

The remainder theorem states that f(x)/(x - k) has the remainder f(k)

Answer 17

ok so after that what do i do ?
i completely forgot guys please help

Answer 18

You should probably review synthetic division.

Answer 19

k = -3 here

Answer 20

-3 | 4 -5 -8 2

Now can you do this synthetic division?

Answer 21

but i need to know the steps

Answer 22

I suppose that you are the one who is actually told to perform the steps, right?

Answer 23

That's the first step, Nicole. Set up what I set up just there.