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4 January, 19:10

Solve for the x-intercepts by completing the square: x^2 + 12x + 4 = 0

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  1. 4 January, 19:37
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    X^2 + 12x + 4 = 0

    (x + 6) ^2 - 36 + 4 = 0

    (x + 6) ^2 = 36 - 4 = 32

    x + 6 = + / - sqrt32

    x = - 6 + sqrt32, - 6 - sqrt32

    x = - 0.34, - 11.66 (answer) correct to nearest hundredth
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