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3 December, 23:49

X to the 2nd power + 3=12

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  1. 4 December, 02:50
    0
    x = ±3

    Step-by-step explanation:

    x^2 + 3 = 12

    Subtract 3 from each side

    x^2 + 3-3 = 12-3

    x^2 = 9

    Take the square root of each side

    sqrt (x^2) = ±sqrt (9)

    x = ±3
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