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24 March, 15:14

What are the solutions to the equation x2 + 6 = 87? A. - 10 and 10 B. The equation has no solutions. C. - 6 and 6 D. - 9 and 9

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  1. 24 March, 17:49
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    X² + 6 = 87

    - 6 - 6

    x² = 81

    x = + 9

    x = 9 U x = - 9

    The solution set is equal to D. {+9}.
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