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27 December, 15:38

Determine all values of K for which the roots of the equation x squared minus 8x + k equal 0 are complex

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  1. 27 December, 18:32
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    X^2 - 8x + k = 0

    for the roots to be complex the discriminant b^2 - 4ac is < 0

    (-8) ^2 - 4*1*k < 0

    -4k < - 64

    k > 16
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