问题
填空题
分解因式:(a-b)2-(a-b)(a+b)=______.
答案
(a-b)2-(a-b)(a+b),
=(a-b)[(a-b)+(a+b)],
=(a-b)(a-b+a+b),
=2a(a-b).
故答案为:2a(a-b).
分解因式:(a-b)2-(a-b)(a+b)=______.
(a-b)2-(a-b)(a+b),
=(a-b)[(a-b)+(a+b)],
=(a-b)(a-b+a+b),
=2a(a-b).
故答案为:2a(a-b).