数学题目分解因式

(xy+1)(x+1)(y+1)+xy
2024-11-29 13:18:14
推荐回答(1个)
回答1:

(xy+1)(x+1)(y+1)+xy
=(xy+1)(xy+1+x+y)+xy
=(xy+1)²+(x+y)(xy+1)+xy
=(xy+1+x)(xy+1+y)