9x^2-21x/3x^2-12x

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Solution for 9x^2-21x/3x^2-12x equation: 


x in (-oo:+oo)

9*x^2-(((21*x)/3)*x^2)-(12*x) = 0

9*x^2-7*x^3-12*x = 0

9*x^2-7*x^3-12*x = 0

x*(9*x-7*x^2-12) = 0

9*x-7*x^2-12 = 0

DELTA = 9^2-(-12*(-7)*4)

DELTA = -255

DELTA < 0

x = 0

x = 0

x = 0

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