Define degree of a polynomial.

A degree in a polynomial function is the greatest exponent of that equation, which determines the most number of solutions that a function could have. Or in simple words the degree of a term is the sum of the exponents of the variables that appear in it, and thus is a non-negative integer.

Each equation contains from one to several terms, which are divided by numbers or variables with different exponents.

For Example,

y = 3x13 + 5x3

As we can see it has two terms,

3x13 and 5x3

And the degree of the polynomial is 13, and that's the highest degree of any term in the equation.