Question

P(x)=2x-2x³+7 when x=-2

Answer 1

$answer... \\ 2( - 2) - 2 { (- 2)}^{3} + 7 \\ = - 4 - 2( - 8) + 7 \\ = - 4 + 16 + 7 \\ = - 4 + 23 \\ = 19$

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