x^2-1/2x*1/3x=400

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Solution for x^2-1/2x*1/3x=400 equation: 


x in (-oo:+oo)

x^2-(((1*(1/2)*x)/3)*x) = 400 // - 400

x^2-(((1*(1/2)*x)/3)*x)-400 = 0

x^2+(-1/6)*x^2-400 = 0

5/6*x^2 = 400 // : 5/6

x^2 = 480

x^2 = 480 // ^ 1/2

abs(x) = 4*30^(1/2)

x = 4*30^(1/2) or x = -(4*30^(1/2))

x in { 4*30^(1/2), -(4*30^(1/2)) }

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