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> 若(a-2)a+1=1,则a=______.-数学
若(a-2)a+1=1,则a=______.-数学
题目简介
若(a-2)a+1=1,则a=______.-数学
题目详情
若(a-2)
a+1
=1,则a=______.
题型:填空题
难度:中档
来源:不详
答案
①当a-2=1时,a=3.
②当a+1=0且a-2≠0时,a=-1.
③当a-2=-1 a+1=2时,a=1
a的值为3或-1或1.
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题目简介
若(a-2)a+1=1,则a=______.-数学
题目详情
答案
②当a+1=0且a-2≠0时,a=-1.
③当a-2=-1 a+1=2时,a=1
a的值为3或-1或1.