题目内容：
(本小题满分12分) 已知抛物线经过点(2，3)，对称轴方程为x=1，且在x轴上截得的弦长为4，试求抛物线的解析式．
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答案解析：
简答题：(本小题满分12分) 已知抛物线经过点(2，3)，对称轴方程为x=1，且在x轴上截得的弦长为4，试求抛物线的解析式．
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已知抛物线经过点(2，3)，对称轴方程为x=1，且在x轴上截得的弦长为4，试求抛物线的解析式．
已知抛物线经过点(2，3)，对称轴方程为x=1，且在x轴上截得的弦长为4，试求抛物线的解析式．
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