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题目简介
方程的根是.-八年级数学
题目详情
答案
解:方程 x=
x2=2x+3,即x2-2x-3=0,
解得x1=3,x2=-1,
代入原方程检验可知x=3符合题意,x=-1舍去.
故答案为:x=3.