z^2-x^2/4-y^2/9

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Solution for z^2-x^2/4-y^2/9 equation: 


x in (-oo:+oo)

z^2-((x^2)/4)-((y^2)/9) = 0

-1/4*x^2 = -(z^2-1/9*y^2) // : -1/4

x^2 = 4*(z^2-1/9*y^2)

x^2 = 4*(z^2-1/9*y^2) // ^ 1/2

abs(x) = 2*(z^2-1/9*y^2)^(1/2)

x = 2*(z^2-1/9*y^2)^(1/2) or x = -(2*(z^2-1/9*y^2)^(1/2))

x in { 2*(z^2-1/9*y^2)^(1/2), -(2*(z^2-1/9*y^2)^(1/2)) }

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