a^2+2/3a+1/9=-1/9

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Solution for a^2+2/3a+1/9=-1/9 equation: 


a in (-oo:+oo)

a^2+(2/3)*a+1/9 = -1/9 // + -1/9

a^2+(2/3)*a+1/9-(-1/9) = 0

a^2+(2/3)*a+1/9+1/9 = 0

a^2+2/3*a+2/9 = 0

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

DELTA = -4/9

DELTA < 0

a belongs to the empty set

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