写出下列式子的公因式 5m(x-y)(a-b+c)+6n(y-x)(a+b-c)
问题描述:
写出下列式子的公因式 5m(x-y)(a-b+c)+6n(y-x)(a+b-c)
答
5m(x-y)(a-b+c)+6n(y-x)(a+b-c)
=5m(x-y)(a-b+c)-6n(x-y)(a+b-c)
它的公因式是(x-y)