24⋅((3⋅2)^−1 would be clearer if written as 24⋅( (3⋅2)^(−1) ). This expression can be writtten with only positive exponents as follows:
24 / (3*2)^1, or simply 24 / (3*2).
This 24 / (3*2) simplifies to 24/6, which equals 4.
