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28 January, 13:53

Multiply. Give your answer in standard form. (3n2 + 2n + 4) (2n - 1) A. 6n3 + n2 + 6n - 4 B. 6n3 + 7n2 + 6n - 4 C. 6n3 - n2 + 10n - 4 D. 6n3 + n2 + 10n - 4

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  1. 28 January, 14:10
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    A

    Step-by-step explanation:

    (3n²+2n+4) (2n-1)

    to solve this multiply through by using each term in one bracket to multiply all terms in the second bracket to open the bracket.

    3n² (2n-1) + 2n (2n-1) + 4 (2n-1)

    6n³-3n² + 4n²-2n+8n-4

    6n³+n²+6n-4

    Hence the correct option is A
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