To solve the expression (-12) × (-12) × 40, we follow the order of operations, which states that we should perform the multiplication and division operations before addition and subtraction.
(-12) × (-12) equals 144 (since the product of two negative numbers is positive).
So, we have 144 × 40.
Multiplying 144 by 40 gives us 5,760.
Therefore, (-12) × (-12) × 40 equals 5,760.