x^2+8x+1=0 solution set for quadratic equation
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x = [-b (+/-) sqrt[b^2-4ac]] / 2a
x= (-8 +- sqrt(64 + 4))/2x= -8 +- sqrt(68) x= -8 +- 8.24 x = 0.24/2 or -16.24/2
x= 0.12 or -8.12
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