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x^3-(3*x^2)-(4*x) = 0;x
x
3*(sin(5*x^2-x+4))^2
(x^ln(x))/4
27/5 = 14
(360000/41.2)*(2*x-(9*y)-0.81);(4050000/41.2)*(2.8*x+8*y-2.05)
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