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3 January, 16:50

Find the quadratic equation for y=x^2+6x-7

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  1. 3 January, 17:14
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    x = - 1 or x = 7

    Step-by-step explanation:

    From my understanding, y will be zero and you have to find the value of x.

    Step 1: Middle term break

    y = x² + 6x - 7

    x² + 6x - 7 = 0

    x² - 7x + x - 7 = 0

    Step 2: Solve

    x (x-7) + 1 (x-7) = 0

    (x+1) (x-7) = 0

    x = - 1 or x = 7

    Therefore, the value of x is either - 1 or 7.

    !
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