问题标题：
数学基本分式运算(2m-7)(2m-5)/(2m-3)怎么变变变=2m−9+8/(2m-3)
问题描述：
数学基本分式运算
(2m-7)(2m-5)/(2m-3)怎么变变变=2m−9+8/(2m-3)
何建回答：
(2m-7)(2m-5)/(2m-3)=（4m^2-24m+35)/(2m-3)=((2m-3)^2-6(2m-3)+8)/(2m-3)=2m−9+8/(2m-3)
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