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x*(((11*x)/12)*x-5) = 0
x*(11/12*x^2-5) = 0
( 11/12*x^2-5 )
11/12*x^2 = 5 // : 11/12
x^2 = 60/11
x^2 = 60/11 // ^ 1/2
abs(x) = (60/11)^(1/2)
x = (60/11)^(1/2) or x = -(60/11)^(1/2)
( x )
x = 0
x in { (60/11)^(1/2), -(60/11)^(1/2), 0 }
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