x^3-4x^2y+xy^2
问题描述:
x^3-4x^2y+xy^2
答
x^3-4x^2y+xy^2
=x(x²-4xy+y²)
=x(x²-4xy+4y²-3y²)
=x[(x-2y)²-3y²]
=x(x-2y+√3y)(x-2y-√3y)