化简[x-1-(8/x+1)]/(x+3)/(x+1)
问题描述:
化简[x-1-(8/x+1)]/(x+3)/(x+1)
答
[x-1-(8/x+1)]/(x+3)/(x+1)
=[(x-3)(x+3)/(x+1)]/(x+3)/(x+1)
=x-3