Answer:
4x³ - 13x + 6
Explanation:
(2x - 1)(2x² + x - 6)
each term in the second factor is multiplied by each term in the first factor , that is
2x(2x² + x - 6) - 1 (2x² + x - 6) ← distribute both parenthesis
= 4x³ + 2x² - 12x - 2x² - x + 6 ← collect like terms
= 4x³ - 13x + 6