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25 May, 16:30

Given the function f (x) = 4x^8+7x^7+1x^6+1 What is the value of f (-2) ?

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  1. 25 May, 16:46
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    f (x) = 4x^8+7x^7+1x^6+

    ∴ f (-2) = 4 (-2) ^8+7 (-2) ^7+1 (-2) ^6+1

    ∴ f (-2) = (4x256) + (7x-128) + (1x64) + 1

    ∴ f (-2) = 1024 - 896 + 64 + 1

    ∴ f (-2) = 193
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