多项式3(x-y)平方-9(x-y)的公因式是----,另一个因式是-----
问题描述：
多项式3(x-y)平方-9(x-y)的公因式是----,另一个因式是-----
答
3(x-y)^2-9(x-y)
=3[(x-y)^2-3(x-y)]
=3(x-y)(x-y-3)
多项式3(x-y)平方-9(x-y)的公因式是:3(x-y),另一个因式是:(x-y-3)
答
(x-y) 3(x-y)
答
3(x-y)平方-9(x-y)
=3(x-y)(x-y-3)
多项式3(x-y)平方-9(x-y)的一个因式是3(x-y),另一个因式是(x-y-3)