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22 December, 09:03

find a quadratic equation with the following roots.

5 + 2i and 5-2i

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  1. 22 December, 12:45
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    (x + 5 + 2i) (x + 5 - 2i) = x^2 + (5 - 2i) x + (5 + 2i) x + (5 + 2i) (5 - 2i) = x^2 + 5x - 2ix + 5x + 2ix + 25 - 10i + 10i + 4 = x^2 + 10x + 29 = 0
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