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27 January, 11:39

Solve for all zeros, reduce as much as possible, show all work. x^4 + 14x^2 + 45 = 0

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  1. 27 January, 14:45
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    First, factor it: (x²+5) (x²+9) = 0

    x²=-5=5i², or x²=-9=9i²

    x = (√5) i, - (√5) i, 3i, or - 3i
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