问题描述: x^2(x-1)^2-4x(x-1)-12 1个回答 分类:数学 2014-11-07 问题解答: 我来补答 x^2(x-1)^2-4x(x-1)-12= [x(x-1)] ^2 -4x(x-1)- 12 = [x(x-1) - 6 ] [x(x-1) +2 ]= (x²-x -6 )(x² -x +2 ) = ( x -3 ) (x+2 ) (x² -x +2 ) 展开全文阅读