Degree: 5; leading coefficient: –16
Step-by-step explanation:
Given polynomial function is

The degree of the polynomial is a highest value of the exponent in one variable in the given polynomial.
Here, highest value of the exponent = 5
So, degree of the polynomial = 5
Leading coefficient is the value before the highest degree of the variable in the polynomial.
Here, leading coefficient = –16
Hence, the answer is Degree: 5; leading coefficient: –16.