y=x^2/4

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Solution for y=x^2/4 equation: 


x in (-oo:+oo)

y = (x^2)/4 // - (x^2)/4

y-((x^2)/4) = 0

-1/4*x^2 = -y // : -1/4

x^2 = 4*y

x^2 = 4*y // ^ 1/2

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

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

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

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