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15 March, 23:22

If f (x) = (x - 3) 2, find all values of x for which f (x) = 36.

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  1. 15 March, 23:23
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    F (x) = (x - 3) ²,

    For f (x) = 36

    (x - 3) ² = 36

    Take the square root of both sides

    √ (x - 3) ² = √36

    (x - 3) = + 6 or - 6

    x = 3 + 6 or 3 - 6

    x = 9 or - 3

    The values of x are - 3 and 9.
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