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15 November, 03:15

Find f (-2) if f (x) = -x^3+2x^2+x-1

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  1. 15 November, 06:59
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    f ( - 2) = 13

    Step-by-step explanation:

    To evaluate f ( - 2) substitute x = - 2 into f (x)

    f ( - 2) = - ( - 2) ³ + 2 ( - 2) ² + ( - 2) - 1

    = - ( - 8) + 2 (4) - 2 - 1 = 8 + 8 - 2 - 1 = 13
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