Question

What is the factorization of the trinomial below?

-2x^3 - 10x^2 - 12x



A. -2x(x + 3)(x - 2)
B. 2x(x2 + 3)(x + 2)
C. -2x(x + 3)(x + 2)
D. -2x(x - 3)(x + 2)

Answer 1

A

Explanation:

Just did it on ap3x

Answer 2

Every term has -2x in it, so factor -2x out first.


`-2x^3 - 10x^2 - 12x =`


`= -2x(x^2 + 5x + 6)`

Now you need two numbers that multiply to 6 and add to 5.
They are 3 and 2.


`= -2x(x + 3)(x + 2)`