a^2+a-4/9

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Solution for a^2+a-4/9 equation: 


a in (-oo:+oo)

a^2+a-(4/9) = 0

a^2+a-4/9 = 0

a^2+a-4/9 = 0

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

DELTA = 25/9

DELTA > 0

a = ((25/9)^(1/2)-1)/(1*2) or a = (-(25/9)^(1/2)-1)/(1*2)

a = 1/3 or a = -4/3

a in { -4/3, 1/3 }

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