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14 January, 04:13

Product of (5x^2-x-3) (2x+6)

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  1. 14 January, 07:52
    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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