因式分解 -5x³y(x-y)³+20y【x²（y-x）】²

来源：学生作业学帮网编辑：学帮网时间：2024/05/05 04:08:47

-5x³y(x-y)³+20y[x²(y-x)]²
=-5x³y(x-y)³ +20yx⁴(x-y)²
=-5x³y(x-y)²[(x-y)-4x]
=-5x³y(x-y)²(-3x-y)
=5x³y(x-y)²(3x+y)