y^2-y-2/5y^2-5

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


y in (-oo:+oo)

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

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

3/5*y^2-y-5 = 0

DELTA = (-1)^2-(-5*3/5*4)

DELTA = 13

DELTA > 0

y = (13^(1/2)+1)/(3/5*2) or y = (1-13^(1/2))/(3/5*2)

y = 5/6*(13^(1/2)+1) or y = 5/6*(1-13^(1/2))

y in { 5/6*(1-13^(1/2)), 5/6*(13^(1/2)+1) }

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