问题 填空题

多项式6x3-11x2+x+4可分解为______.

答案

6x3-11x2+x+4,

=6x3-6x2-5x2+x+4,

=6x2(x-1)-(5x2-x-4),

=6x2(x-1)-(x-1)(5x+4),

=(x-1)(6x2-5x-4),

=(x-1)(3x-4)(2x+1).

单项选择题
问答题 简答题