1/2x^2-7y

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Solution for 1/2x^2-7y equation: 


x in (-oo:+oo)

(1/2)*x^2-(7*y) = 0

(1/2)*x^2-7*y = 0

1/2*x^2 = -(-7*y) // : 1/2

x^2 = 14*y

x^2 = 14*y // ^ 1/2

abs(x) = 14^(1/2)*y^(1/2)

x = 14^(1/2)*y^(1/2) or x = -(14^(1/2)*y^(1/2))

x in { 14^(1/2)*y^(1/2), -(14^(1/2)*y^(1/2)) }

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