因式分解:(2a+1)(3a-5)-4(a-2)

因式分解:(2a+1)(3a-5)-4(a-2)

(2a+1)(3a-5)-4(a-2)
=6a²;-10a+3a-5-4a+8
=6a²;-11a+3
=(2a-3)(3a-1)
不懂還可問,o(∩_∩)o