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26 October, 03:04

Find x3-2y2-3x3+z4ifx=3, y=5, and z=-3

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  1. 26 October, 03:08
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    X^3 - 3x^3 would equal - 2x^3

    Replaced x by 3, y by 5 and z by - 3

    -2x^3 = (-2) * (3^3) = (-2) * 27 = - 54

    y^5 = 5^5 = 3125

    z^4 = (-3) ^4 = 9^2 = 81

    Add everything together so the result is 3152
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