What are the roots of the polynomial equation? x^2−12x−64=0

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What are the roots of the polynomial equation? x^2−12x−64=0

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    2021-09-19T08:55:40+00:00

    It is a quadratic equation so we can use the quadratic formula to solve it.
    x^2−12x−64=0
    a = 1
    b = -12
    c = -64
    x = [-b +-sq root (b^2 -4ac)]  / 2a
    x = [–12 +-
    sq root (144 -4*1*-64)] / 2
    x = [12 +- 20] / 2
    x1 = 16
    x2 = -4

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