分解因式:a2-2ab+b2-c2.
问题描述:
分解因式:a2-2ab+b2-c2.
答
a2-2ab+b2-c2,
=a2-2ab+b2-c2,
=(a2-2ab+b2)-c2,
=(a-b)2-c2,
=(a-b-c)(a-b+c).