\(A=x\left(3x^2+1-2x^2-2\right)=x\left(x^2-1\right)=x\left(x-1\right)\left(x+1\right)⋮\left(x-1\right)\\ B=x\left(x^2y^2-2xy+1\right)=x\left(xy-1\right)^2⋮\left(xy-1\right)\)
1: Ta có: \(A=x\left(3x^2+1\right)-x\left(2x^2+2\right)\)
\(=3x^3+x-2x^3-2x\)
\(=x^3-x\)
\(=x\left(x-1\right)\left(x+1\right)⋮x-1\)


