3x^2+9x-12/12-15x+3x^2

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Solution for 3x^2+9x-12/12-15x+3x^2 equation: 


x in (-oo:+oo)

3*x^2+3*x^2+9*x-(15*x)-(12/12) = 0

3*x^2+3*x^2+9*x-15*x-1 = 0

6*x^2-6*x-1 = 0

DELTA = (-6)^2-(-1*4*6)

DELTA = 60

DELTA > 0

x = (60^(1/2)+6)/(2*6) or x = (6-60^(1/2))/(2*6)

x = (2*15^(1/2)+6)/12 or x = (6-2*15^(1/2))/12

x in { (6-2*15^(1/2))/12, (2*15^(1/2)+6)/12 }

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