1/3x*x=80

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Solution for 1/3x*x=80 equation: 


x in (-oo:+oo)

(1/3)*x*x = 80 // - 80

(1/3)*x*x-80 = 0

1/3*x^2 = 80 // : 1/3

x^2 = 240

x^2 = 240 // ^ 1/2

abs(x) = 4*15^(1/2)

x = 4*15^(1/2) or x = -(4*15^(1/2))

x in { 4*15^(1/2), -(4*15^(1/2)) }

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