Write the expression using a single exponent.

x^56/ x^24

x^80
x^23
x^32
none of these

x^32

To simplify the expression x^56/ x^24, we can subtract the exponents. This gives us x^(56-24) = x^32.

Therefore, the expression x^56/ x^24 can be written as x^32.

So, the correct answer is x^32.