Question

Factor the given polynomial completely.

a²-4a-32

Answer 1

(x + 4)(x - 8).

Explanation:

a²-4a-32

We need 2 numbers whose product is -32 and whose sum is -4.

They are +4 and -8, so the factors are:

(x + 4)(x - 8).

Answer 2

Explanation:

a²-8a+4a-32

a(a-8)+4(a-8)

(a+4)(a-8)