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x^3*((36*x^3+x^2+18*x)/9) = 0
(x^3*(36*x^3+x^2+18*x))/9 = 0
36*x^3+x^2+18*x = 0
x*(36*x^2+x+18) = 0
36*x^2+x+18 = 0
DELTA = 1^2-(4*18*36)
DELTA = -2591
DELTA < 0
x = 0
(x*x^3)/9 = 0
( x )
x = 0
( x^3 )
1*x^3 = 0 // : 1
x^3 = 0
x = 0
x in { 0, 0 }
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