Question 323070
x³y+2x²y²+xy³
..
x³y+x²y²+x^2y^2+xy³
..
x^2y(x+y)+xy^2(x+y)
x^2y+xy^2(x+y)
..
(x+y)xy(x+y)
xy(x+y)^2
..

x³+av+3a+3x²  instead of v it should be x , I think

x³+av+3a+3x²