八年級數(shù)學下冊51認識分式課件2新版北師大版-免費閱讀
【正文】 ? 做一做 ? 化簡下列分式 yxxy2205)1(abbaba??22)2(xxyxxyyxxy41545205)1(2 ???解：bababbaa ????)()()2( 原式? 課堂練習 (1) ? ?))((_ _ _ _ _ _ _ _ _ _2yxyxyxx????? ?_______142)2( 2 ???yy? ?yxx ?22?y)0( ?? yx? : 3232912)1(yxyx3)()2( yxyx??xyxyxyyxyxyx343343912)1(22223232????解：223
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