因式分解：X^3-4XY^2-2XY+8Y^3

分类: 作业答案 • 2022-01-09 18:04:21

问题描述：

答

=(x^3+8y^3)-2xy(x+2y)
=(x+2y)(x^2-2xy+4y^2)-2xy(x+2y)
=(x+2y)(x^2-4xy+4y^2)
=(x+2y)(x-2y)^2