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6 March, 13:07

Z^3+5 (z+3) - 4 (2-2z^2)

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  1. 6 March, 16:08
    0
    z^3+8z^2+5z+7

    Step-by-step explanation:

    5 (z+3) = 5z+15

    -4 (2-2z^2) = -8+8z^2

    z^3+5z+15-8+8z^2

    z^3+8z^2+5z+7
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