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1 June, 12:38

Bonus solve the equation aݔ ଶ + 7x - 4 = 0 for x by using the quadratic formula.

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  1. 1 June, 13:01
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    x² + 7x - 4 = 0

    a = 1, b = 7, c = - 4

    x = [-b + / - √ (b² - 4ac) ]/2a

    = [-7 + / - √ (49 + 4) ]/2

    = (-7 + / - √53) / 2
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