Answer :
Final answer:
The given expression (5r⁴ - 4r⁴s⁵⁵r⁴ - 4r⁴s⁵) is a polynomial of degree 62. So, the correct answer is d.
Explanation:
The given expression (5r⁴ - 4r⁴s⁵⁵r⁴ - 4r⁴s⁵) is a polynomial.
A polynomial is an algebraic expression with one or more terms, where each term is a product of a constant and one or more variables raised to non-negative integer exponents.
The given expression has three terms: 5r⁴, -4r⁴s⁵⁵r⁴, and -4r⁴s⁵. Therefore, it is a polynomial.
The degree of a polynomial is the highest power of the variable in the polynomial. In this case, the degree of the polynomial is 4 because the highest power of the variable (r) is 4.
So, the correct answer is d) Polynomial of degree 62.