(x+2y)²-(2x+y)² 分解因式
问题描述:
(x+2y)²-(2x+y)² 分解因式
答
原式=(x+2y-2x-y)(x+2y+2x+y)
=(y-x)(3x+3y)
=3(x+y)(y-x)
平方差公式的基本题型,希望能帮到你,望采纳!!!
答
(x+2y)²-(2x+y)²
=(x+2y+2x+y)(x+2y-2x-y)
=3(x+y)(y-x)
答
原式=[(x+2y)+(2x+y)][(x+2y)-(2x+y)]
=(3x+3y)(-x+y)
=3(y+x)(y-x)