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11 October, 11:24
Multiply (5x^2+x-4) (x+2)
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Chanel Cruz
11 October, 13:29
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5x³ + 11x² - 2x - 8
Step-by-step explanation:
Each term in the second factor is multiplied by each term in the first factor, that is
5x² (x + 2) + x (x + 2) - 4 (x + 2) ← distribute the parenthesis
= 5x³ + 10x² + x² + 2x - 4x - 8 ← collect like terms
= 5x³ + 11x² - 2x - 8
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