Answer:
12x² - 5x - 2
Explanation:
(3x - 2)(4x + 1)
Each term in the second factor is multiplied by each term in the first factor, that is
3x(4x + 1) - 2 (4x + 1) ← distribute parenthesis
= 12x² + 3x - 8x - 2 ← collect like terms
= 12x² - 5x - 2
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