Question

Factor x^3 + 3x - 40

Answer 1

thats x cubed right?

Answer 2

yes

Answer 3

its already factored?

Answer 4

Im watchi9ng because i remember what happens when its cubed :)

Answer 5

do you mean find the roots?

Answer 6

no

Answer 7

factor it to two binomials

Answer 8

can't be done. its completely simplified, there is no perfect roots

Answer 9

Are you sure it's 40 and not 4?

Answer 10

the answer is (x + 8) (x-5)

Answer 11

yes

Answer 12

actually its not
because that would make it x^2 not x^3

Answer 13

well the back of my book says so....

Answer 14

are you sure its x^3 then?

Answer 15

That's the answer if it's \(x^2\).

Answer 16

yes

Answer 17

There's a typo in your book then.

Answer 18

something is clearly wrong then.

Answer 19

I guess ill just ask my teacher

Answer 20

It's probably supposed to be \(x^2\), given the answer.
\(x^3 + 3x - 40\) factors into a horrific mess of cube roots and imaginary numbers.

Answer 21

yah probably but it says

Answer 22

x^3

Answer 23

i recon its a typo, cause if it was x squared then it factors out (x+8)(x-5)