81y^4-1/9x^2

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Solution for 81y^4-1/9x^2 equation: 


x in (-oo:+oo)

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

(-1/9)*x^2+81*y^4 = 0

-1/9*x^2 = -(81*y^4) // : -1/9

x^2 = 729*y^4

x^2 = 729*y^4 // ^ 1/2

abs(x) = 27*y^2

x = 27*y^2 or x = -(27*y^2)

x in { 27*y^2, -(27*y^2) }

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