x^2+(x/3)^2=40

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Solution for x^2+(x/3)^2=40 equation: 


x in (-oo:+oo)

x^2+(x/3)^2 = 40 // - 40

x^2+(x/3)^2-40 = 0

10/9*x^2 = 40 // : 10/9

x^2 = 36

x^2 = 36 // ^ 1/2

abs(x) = 6

x = 6 or x = -6

x in { 6, -6 }

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