题目内容
(本题满分5分)
解方程:.
解析:(本题满分5分)
解:.······················· (2分)
.
.······················· (4分)
经检验,是原方程的解.······················ (5分)
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题目内容
(本题满分5分)
解方程:.
解析:(本题满分5分)
解:.······················· (2分)
.
.······················· (4分)
经检验,是原方程的解.······················ (5分)