y^2/4-x^2/9=1

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Solution for y^2/4-x^2/9=1 equation: 


x in (-oo:+oo)

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

(y^2)/4-((x^2)/9)-1 = 0

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

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

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

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

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

x in { (-9)^(1/2)*(1-1/4*y^2)^(1/2), -((-9)^(1/2)*(1-1/4*y^2)^(1/2)) }

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