Answer :
First, you should substitute a, b, and c with -3, 9, and 4, so you get 4(-3(2)+9+4)
Next, following PEMDAS, you solve everything in the (,), leaving you with 4(7).
Lastly, your answer is 28.
Next, following PEMDAS, you solve everything in the (,), leaving you with 4(7).
Lastly, your answer is 28.