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13 March, 19:49

What are the solutions of x^2=8-5x?

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  1. 13 March, 20:09
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    x = (-5 ± √57) / 2

    Step-by-step explanation:

    x² = 8 - 5x

    x² + 5x - 8 = 0

    Solve with quadratic formula:

    x = [ - b ± √ (b² - 4ac) ] / 2a

    x = [ - 5 ± √ (25 - 4 (1) (-8)) ] / 2

    x = (-5 ± √57) / 2
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