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Aldo Moody
Mathematics
19 February, 09:40
Product of (5x^2-x-3) (2x+6)
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Swanson
19 February, 10:00
0
10x³ + 28x² - 12x - 18
Step-by-step explanation:
Given
(5x² - x - 3) (2x + 6)
Each term in the second factor is multiplied by each term in the first factor, that is
5x² (2x + 6) - x (2x + 6) - 3 (2x + 6) ← distribute the parenthesis
= 10x³ + 30x² - 2x² - 6x - 6x - 18 ← collect like terms
= 10x³ + 28x² - 12x - 18
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