问题 填空题

多项式:3(x-y)-6y(y-x)的公因式是______.

答案

3(x-y)-6y(y-x)=3(x-y)(1+2y),

∴3(x-y)-6y(y-x)的公因式是 3(x-y).

故答案为:3(x-y).

单项选择题
填空题