2xy-xx-yy+1的因式分解
问题描述:
2xy-xx-yy+1的因式分解
答
-(X-Y-1)(X-Y 1)
答
1-(x-y)^2
答
-(x-y)*(x-y)+1
=-(x-y+1)*(x-y-1)
答
2xy-xx-yy+1
=1-(x^2-2xy+y^2)
=1-(x-y)^2
=(1+x-y)(1-x+y)
答
2xy-xx-yy+1
=1-(x-y)^2
=(1-x+y)(1+x-y)
答
-(X-Y-1)*(X-Y+1)