Let's simplify the expression:
3*4 = 12
5a*3bc = 15abc
4ac*3b = 12abc
Therefore, the simplified expression is:
12 + 15abc + 12abc = 27abc + 12
Let's simplify the expression:
3*4 = 12
5a*3bc = 15abc
4ac*3b = 12abc
Therefore, the simplified expression is:
12 + 15abc + 12abc = 27abc + 12