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12 January, 07:40

What is X when X² - 5X equals negative 20

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  1. 12 January, 10:34
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    x = (5+sqrt (55) i) / 2, (5-sqrt (55) i) / 2.

    Step-by-step explanation:

    x^2-5x=-20

    x^2-5x - (-20) = 0

    x^2-5x+20=0

    Apply the quadratic formula.
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