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27 November, 12:29

Solve x2 - 10x = - 13

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  1. 27 November, 12:46
    0
    Hello:

    x²-10x+13 = 0

    (x²-2 (5) (x) + 5²) - 5²+13 = 0

    (x-5) ² - 12 = 0

    (x-5) ² = 12

    x-5 = √12 or x-5 = - √12

    x=5+√12 or x=5-√12
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