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2019中考数学一轮复习第一部分教材同步复习第一章数与式第4讲整式与因式分解权威预测.doc

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1第一部分 第一章 第 4 讲1分解因式：3 x327 x_3 x(x3)( x3)_.2下列计算正确的是( D )A(2 a1) 24 a21 B3 a63a3 a2C( ab2)4 a4b6 D2 a(2 a1)1

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