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18 August, 17:34

Write a quadratic equation for which the only solution is 4.

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  1. 18 August, 17:49
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    x^2 - 8x + 16 = 0

    Explanation:

    x = 4 or x = 4

    x - 4 = 0 or x - 4 = 0

    (x - 4) (x - 4) = x^2 - 4x - 4x + 16

    = x^2 - 8x + 16
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