Answer: To rewrite the expression in the form b^n b^15/b, we can simplify the expression by combining the terms with the same base, which is b.
So, b^n b^15/b can be written as b^(n+15)/b.
Using the property of exponents, when we divide two exponential terms with the same base, we can subtract their exponents. Therefore, b^(n+15)/b can be simplified further as b^(n+15-1), which is equal to b^(n+14).
Hence, the given expression in the form b^n b^15/b is equivalent to b^(n+14).