To simplify the expression, we first simplify the numbers inside the parenthesis:
4 + 11 - 5 = 15
Now we substitute the simplified value back into the original expression:
12 × 12 × 15
Next, we multiply the numbers from left to right:
12 × 12 = 144
144 × 15 = 2160
Therefore, the simplified expression is 2160.