10x^3-8x^2-12x^2(x)
10x^3-8x^2-12x^3
-2x^3-8x^2
=-2x^2(x+4)
let's recall that i⁴ = 1 so then 
Answer:
<em>Well, Your best answer will be is </em><em>B. -1 1/2. </em>
<em>Hope That Helps!</em>

Answer:
A- 15
Step-by-step explanation:
I think option no a is answer