2x^3y+4x^2y+2xy2x^3 y+4x^2 y+2xy

问题描述:

2x^3y+4x^2y+2xy
2x^3 y+4x^2 y+2xy

2x^3 y+4x^2 y+2xy =2xy(x+2x+1) =2xy(x+1)

2x^3 y+4x^2 y+2xy =2xy(x+2x)+2xy =2xy(x+2x+1) =2xy(x+1)