Answer:
x³ - 7x² + 4x + 30
Step-by-step explanation:
Each term in the second factor is multiplied by each term in the first factor, that is
x(x² - 2x - 6) - 5(x² - 2x - 6) ← distribute both parenthesis
= x³ - 2x² - 6x - 5x² + 10x + 30 ← collect like terms
= x³ - 7x² + 4x + 30
