y=2/5x^2

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Solution for y=2/5x^2 equation: 


x in (-oo:+oo)

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

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

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

-2/5*x^2 = -y // : -2/5

x^2 = 5/2*y

x^2 = 5/2*y // ^ 1/2

abs(x) = (5/2)^(1/2)*y^(1/2)

x = (5/2)^(1/2)*y^(1/2) or x = -((5/2)^(1/2)*y^(1/2))

x in { (5/2)^(1/2)*y^(1/2), -((5/2)^(1/2)*y^(1/2)) }

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