Question

Factor the expression:
x3 - 2x2 - 9x + 18

Answer 1

You have to be really careful when there's a negative sign between the second and third term.

x^3+2x^2-9x-18
= x^2(x+2) - 9(x+2)

Notice that when you distribute the -9, the + will change to a -.

You can simplify further:

(x^2-9)(x+2)
= (x+3)(x-3)(x+2)

Answer 2

Do u understand now?

Answer 3

on last part is it x+2 or x-2?

Answer 4

+

Answer 5

it doesnt have that as a option

Answer 6

what are your options?

Answer 7

(x - 3)(x - 3)(x - 2)
(x + 3)(x + 3)(x - 2)
(x + 3)(x - 3)(x - 2)
(x + 3)(x + 3)(x +2)

Answer 8

its the last one like i said

Answer 9

on urs middle is x-3

Answer 10

well thats what i got but give the last one a try

Answer 11

ok thanks

Answer 12

your welcome :)