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15 May, 03:41

Which is a correct expansion of (2x+3) (2x^{2} - 5) ?

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  1. 15 May, 04:11
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    4x^{3} + 6x^{2} - 10x - 15

    Step-by-step explanation:

    (2x+3) (2x^{2} - 5)

    2x * 2x^{2} + 2x * (-5) + 3 * 2x^{2} + 3 * (-5)

    =4x^{3} - 10x + 6x^{2} - 15

    = 4x^{3} + 6x^{2} - 10x - 15
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