Question 621901
Factor by Grouping:

8a^3 - 2a^2 + 12a - 3

(8a^3 - 2a^2) + (12a - 3)

Factor: 

8a^3 - 2a^2 = 2a^2(4a - 1)

Factor:

12a - 3 = 3(4a - 1)

The Answer:

(2a^2 + 3)(4a - 1)