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21 February, 21:12

What two numbers add to make - 4 and multiply to make 20

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  1. 21 February, 21:17
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    The two numbers are the roots of

    x^2 + 4x + 20 = 0

    Solving the equation, we have

    x=-2+4i or - 2-4i

    Hence the numbers are - 2+4i and - 2-4i
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