6(x-3)²+3x-9 因式分解
问题描述:
6(x-3)²+3x-9 因式分解
答
6(x-3)²+3x-9
=6(x-3)²+3(x-3)
=(x-3)(6x-18+3)
=(x-3)(6x-15)
=3(x-3)(2x-5)