Question 807448
The remainder is f(a) = 4(a)^2-3(a)-8 = 2

Then  4a^2-3a-10 =0

a = 2 or a = -5/4

Answer: a =2 or -5/4

If you need more help with this kind if questions, you can contact me now at:

mthman@gmail.com

Thanks