Answer:
6x³ + 24x² + 18x - 12
Explanation:
We require the product
(2x² + 4x - 2)(3x + 6)
Each term in the second factor is multiplied by each term in the first factor, that is
2x²(3x + 6) + 4x(3x + 6) - 2(3x + 6) ← distribute all parenthesis
= 6x³ + 12x² + 12x² + 24x - 6x - 12 ← collect like terms
= 6x³ + 24x² + 18x - 12