1.(2013•台湾)下列何者是22x7-83x6+21x5的因式?( )A.2x+3B.x2(11x-7)C.x5(11x-3)D.x6(2x+7)2.(2013•台湾)若A=101×9996×10005,B=10004×9997×101,则A-B之值为何?( )A.101B.-101C.
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