Answer: -8x^3 + 6x^2
Step-by-step explanation:
Multipy each term in the parenthesis by -2x^2
-2x^2 x 4x - 2x^2 x (-3)
calculate the product
-8x^3 - 2x^2 x (-3)
multiplying two negatives equals a positive: (-)x(-)=(+)
-8x^3 + 2x^2 x 3
calculate the product
-8x^3 + 6x^2
