因式分解:(a-3)(a-2)-12
问题描述:
因式分解:(a-3)(a-2)-12
答
(a-3)(a-2)-12=a^2-5a-6=(a-6)(a+1)
答
(a-3)(a-2)-12
=a²-2a-3a+6-12
=a²-5a-6
=(a+1)(a-6)