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23 September, 22:08

Solve the following quadratic x^2-121=f (x)

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  1. 23 September, 22:35
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    To solve them, set the equation equal 0. so

    x^2-121 = 0

    plus 121 for both side then we get

    x^2 = 121

    We take the square root for both side ''

    x = + or - 11
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