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15 September, 03:32

Solve for y. x-4=y^2

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  1. 15 September, 03:49
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    X - 4 = y^2

    Since you want y to the first power you have to take the square root of y^2.

    If you take the square root of the right side you also must take the square root of the left side.

    + - sqrt (x-4) = y

    y = sqrt (x - 4)

    and y = - sqrt (x - 4)
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