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19 November, 15:43

Multiply the polynomials. (5x2 + 2x + 8) (7x - 6) A. 35x3 - 16x2 - 44x - 48 B. 35x3 - 14x2 + 44x - 48 C. 35x3 - 16x2 + 44x + 48 D. 35x3 - 16x2 + 44x - 48

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  1. 19 November, 16:35
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    D) 35x³ - 16x² + 44x - 48

    Step-by-step explanation:

    (5x2 + 2x + 8) (7x - 6) = (5x2 + 2x + 8) * 7x + (5x2 + 2x + 8) * ( - 6)

    = (5x2*7x + 2x*7x + 8*7x) + (5x2 * (-6) + 2x * (-6) + 8 * (-6))

    =35x³ + 14x² + 56x - 30x² - 12x - 48

    = 35x³ - 16x² + 44x - 48
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