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What is the vertex of g (x) = 3x3x^2-12x12x+7

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  1. 8 August, 11:17
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    (2, - 5)

    Step-by-step explanation:

    g (x) = 3x² - 12x + 7

    Complete the square.

    g (x) = 3 (x² - 4x) + 7

    g (x) = 3 (x² - 4x + 4) + 7 - 3 (4)

    g (x) = 3 (x - 2) ² + 7 - 12

    g (x) = 3 (x - 2) ² - 5

    The vertex is at (2, - 5).
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