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18 October, 03:23

Find the real or imaginary solutions by factoring

x^4-8x^2=-16

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  1. 18 October, 03:29
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    X^4 - 8x^2 + 16 = 0

    (x^2 - 4) (x^2 - 4) = 0

    x^2 - 4 = 0

    x = + 2, - 2

    Solution is x = 2 (duplicity 2) and x = - 2 (duplicity 2)
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