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9 September, 22:43

What are the coordinates of the vertex for f (x) = 3x^2+6x+3?

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  1. 9 September, 23:02
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    F (x) = 3x² + 6x + 3 = 3 (x² + 2x + 1) = 3 (x + 1) ² + 0

    used: (a + b) ² = a² + 2ab + b²

    The vertex form: y = a (x - h) ² + k

    the coordinates of vertex: (h; k)

    Therefore, your answer: (-1; 0).
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