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1 July, 15:10

Rewrite x^2+9 as a multiplication using complex numbers and the polynomial identity below u^2+v^2 = (u+VI) (u-vi)

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  1. 1 July, 18:01
    0
    Hello:

    in : C

    x²+9 = (x-3i) (x+3i) ... i² = - 1
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