5/2-y-4/9y^2

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Solution for 5/2-y-4/9y^2 equation: 


y in (-oo:+oo)

5/2-((4/9)*y^2)-y = 0

(-4/9)*y^2-y+5/2 = 0

5/2-4/9*y^2-y = 0

DELTA = (-1)^2-(-4/9*5/2*4)

DELTA = 49/9

DELTA > 0

y = ((49/9)^(1/2)+1)/(-4/9*2) or y = (1-(49/9)^(1/2))/(-4/9*2)

y = -15/4 or y = 3/2

y in { -15/4, 3/2 }

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