1/4x^2+4x=23

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Solution for 1/4x^2+4x=23 equation: 


x in (-oo:+oo)

(1/4)*x^2+4*x = 23 // - 23

(1/4)*x^2+4*x-23 = 0

1/4*x^2+4*x-23 = 0

DELTA = 4^2-(-23*1/4*4)

DELTA = 39

DELTA > 0

x = (39^(1/2)-4)/(1/4*2) or x = (-39^(1/2)-4)/(1/4*2)

x = 2*(39^(1/2)-4) or x = -2*(39^(1/2)+4)

x in { -2*(39^(1/2)+4), 2*(39^(1/2)-4) }

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