x^2-2/3x19/9

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Solution for x^2-2/3x19/9 equation: 


x in (-oo:+oo)

x^2-((2/3)*x) < 19/9 // - 19/9

x^2-((2/3)*x)-(19/9) < 0

x^2+(-2/3)*x-19/9 < 0

x^2-2/3*x-19/9 < 0

DELTA = (-2/3)^2-(-19/9*1*4)

DELTA = 80/9

DELTA > 0

x = ((80/9)^(1/2)+2/3)/(1*2) or x = (2/3-(80/9)^(1/2))/(1*2)

x = ((80/9)^(1/2)+2/3)/2 or x = (2/3-(80/9)^(1/2))/2

a = 1

a > 0

x in ((2/3-(80/9)^(1/2))/2:((80/9)^(1/2)+2/3)/2)

x in ((2/3-(80/9)^(1/2))/2:((80/9)^(1/2)+2/3)/2)

((2/3-(80/9)^(1/2))/2:((80/9)^(1/2)+2/3)/2)

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