因式分解:x²(x+y)-2xy(x+y)+y²(x+y)
问题描述:
因式分解:x²(x+y)-2xy(x+y)+y²(x+y)
答
x²(x+y)-2xy(x+y)+y²(x+y)
=(x+y)(x²-2xy+y²)
=(x+y)(x-y)²
最快手打