Which of the following expressions is equal to -3x^2-12 a. (-3x+2i)(x-6i) b. (-3x-6i)(x+2i) +6i)(x+2i) d. (-3x-4i)(x-3i)

Given expression:

Let us factor out Greatest Common Factor first.

Greatest Common Factor is -3 there.

Factoring out -3 there.

4 could be  written as .

Therefore,

Applying difference of the square identity , we get

Distributing -3 in first parenthesis, we get

-3(x-2i)(x+2i) = (-3x+6i)(x+2i)

it 2

step-by-step explanation:

8^1/3=2