72/4x=x^2

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Solution for 72/4x=x^2 equation: 


x in (-oo:+oo)

(72/4)*x = x^2 // - x^2

(72/4)*x-x^2 = 0

18*x-x^2 = 0

DELTA = 18^2-(-1*0*4)

DELTA = 324

DELTA > 0

x = (324^(1/2)-18)/(-1*2) or x = (-324^(1/2)-18)/(-1*2)

x = 0 or x = 18

x in { 0, 18 }

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