(x+1)/(2+1+x²/x)化简
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(x+1)/(2+1+x²/x)化简
(x+1)/(2+1+x²/x)化简
(x+1)/(2+1+x²/x)化简
1-2/(3+x)
简化为:x/(x+1),x≠0,x≠-1