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6 February, 23:54

Find f (-2) if f (x) = x^4+2x^2-1

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  1. 7 February, 00:01
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    Step-by-step explanation:

    f (x) = x^4+2x^2-1

    Let x = - 2

    f (-2) = (-2) ^4 + 2 (-2) ^2 - 1

    =16 + 2*4-1

    =16+8-1

    24-1

    23
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