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6 September, 07:26

Rewrite the function by completing the square f (x) = x^2-4x-26

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  1. 6 September, 07:30
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    (x - 2) ² - 30

    Step-by-step explanation:

    To complete the square

    add/subtract (half the coefficient of the x - term) ² to x² - 4x

    f (x) = x² + 2 ( - 2) x + 4 - 4 - 26 = (x - 2) ² - 30
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