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8 October, 21:27

Solve for the roots in the simplest form using the quadratic formula: x^2+118=20x

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  1. 9 October, 00:17
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    x = 10 + 3sqrt (2) i, x = 10 - 3sqrt (2) i

    Step-by-step explanation:

    x² - 20x + 118 = 0

    Using quadratic formula:

    x = [ - (-20) + / - sqrt[20² - 4 (1) (118) ]/2

    x = [20 + / - sqrt (-72) ]/2

    x = [20 + / - i6sqrt (2) ]/2

    x = 10 + / - i3sqrt (2)

    x = 10 + / - 3sqrt (2) i
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