sydfred
sydfred
15-02-2019
Mathematics
contestada
X^2+8x+12=0. Solve using quadratic formula
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MonsieurPengu
MonsieurPengu
15-02-2019
D = b^2-4ac, thus D = 64 - 4*12 = 16
Now is x = -b +- sqrt(D) / 2a, or x = -8 +- sqrt(16)/2, giving respectively -2 and -6
So x = -2 or x = -6
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