8y分6a·3a²分2y²(配套练习册数学)a-2分a+2·a²+2a分1
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8y分6a·3a²分2y²(配套练习册数学)a-2分a+2·a²+2a分1
8y分6a·3a²分2y²(配套练习册数学)
a-2分a+2·a²+2a分1
8y分6a·3a²分2y²(配套练习册数学)a-2分a+2·a²+2a分1
6a/8y*2y^2/3a^2=y/2a
(a+2)/(a-2)*1/(a+2a)
=1/a(a-2)