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5 January, 02:06

Find all solutions to: 54x+3x^2+243

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  1. 5 January, 02:43
    0
    -9

    Step-by-step explanation:

    3x² + 54x + 243 = 0

    x² + 18x + 81 = 0

    x² + 9x + 9x + 81 = 0

    x (x + 9) + 9 (x + 9) = 0

    (x + 9) ² = 0

    x = - 9
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