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6 December, 12:11

Write the quadratic function in vertex form: f (x) = 8x2 + 2x - 5

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  1. 6 December, 15:13
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    Hello:

    f (x) = 8x² + 2x - 5

    f (x) = 8 (x²+1/4 x) - 5

    f (x) = 8 (x²+2 (1/8) x + (1/8) ² - (1/8) ²) - 5

    f (x) = 8 ((x+1/8) ²-1/8-5

    f (x) = 8 (x+1/8) ²-41/5 ... (vertex form)
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