X2 4x 3 x2 x 2x2. X3-2x2+x+3. X2 3x x 3 0. A{X|X^3-3x^2+2x=0}. X^3+2x^2+3x+2=0. X/3+X-1/2=4. 4^2/X+3>=4^1+X/X. (X+3)(X-2)-(X+4)(X-1)=3x. (X-2)^4+3(X-2)^2*(X-3)^2-4(X-3)^4=0. X^2/3-X=2x/3-x. (X-2)^3. 2^X=3^X. X2/x+3=2x+3/x+3. (X-2)(X+2). X2-3x=0. (X-3)^2=(X+2)^2