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5 June, 10:09

Find the value of this expression if x=4 x^2-4/x-8

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  1. 5 June, 11:59
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    X = 4 + (x^2 - 4) / (x - 8)

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

    x^2 - 8x = 4x - 32 + x^2 - 4

    -8x - 4x = - 32 - 4

    -12x = - 36

    x = - 36/-12

    x = 3
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