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17 October, 21:44

What does - 3 (x+2) ^2+18=

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  1. 17 October, 22:08
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    -3 (x + 2) ² + 18

    -3 (x + 2) (x + 2) + 18

    -3[x (x + 2) + 2 (x + 2) ] + 18

    -3[x (x) + x (2) + 2 (x) + 2 (2) ] + 18

    -3 (x² + 2x + 2x + 4) + 18

    -3 (x² + 4x + 4) + 18

    -3 (x²) - 3 (4x) - 3 (4) + 18

    -3x² - 12x - 12 + 18

    -3x² - 12x + 6
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