(4b+2a/9b-6a)-(4a-6b/3a+6b)
=(a+2b)x2/(2a-3b)x2-(2a-3b)x2/(a+2b)x3
=3-1/3x2/3
=2又7/9
当a+2b/2a-3b=3时,求代数式(4b+2a/9b-6a)-(4a-6b/3a+6b)的值
当a+2b/2a-3b=3时,求代数式(4b+2a/9b-6a)-(4a-6b/3a+6b)的值
数学人气:965 ℃时间:2019-10-10 04:53:35
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