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26 May, 00:58

Solve Y=x^2-18 for x

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  1. 26 May, 04:56
    0
    y=X^2-18

    since 18 doesn't contain the variable add 18 to both sides to get

    18+y = x^2

    then take square root to get just x

    so square root (18+y) = x

    for complete solution use both negative and positive answers so

    x = - square root (18+y) & x = square root (18+y)
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