9/19y^2-4/9y

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Solution for 9/19y^2-4/9y equation: 


y in (-oo:+oo)

(9/19)*y^2-((4/9)*y) = 0

(9/19)*y^2+(-4/9)*y = 0

9/19*y^2-4/9*y = 0

DELTA = (-4/9)^2-(0*9/19*4)

DELTA = 16/81

DELTA > 0

y = ((16/81)^(1/2)+4/9)/(9/19*2) or y = (4/9-(16/81)^(1/2))/(9/19*2)

y = 76/81 or y = 0

y in { 0, 76/81 }

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