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4-(((6*x)/3)*x^2)-(2*x) = 0
4-2*x^3-2*x = 0
4-2*x^3-2*x = 0
2*(2-x^3-x) = 0
2-x^3-x = 0
{ 1, -1, 2, -2 }
1
x = 1
2-x^3-x = 0
1
x-1
-x^2-x-2
2-x^3-x
x-1
x^3-x^2
2-x^2-x
x^2-x
2-2*x
2*x-2
0
-x^2-x-2 = 0
DELTA = (-1)^2-(-2*(-1)*4)
DELTA = -7
DELTA < 0
x in { 1}
2 = 0
x = 1
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