The degree of this monomial, which is a form of a polynomial, has a degree of 7.
Explanation: For two variables, we take the sum of the powers and this becomes the highest power of our polynomial, which is defined as the degree of a polynomial.
Now, it's relatively easy for polynomials where we are taking one variable, but two variables is a little bit harder.
Notice how any variable to the power of 0 will give us 1, and anything multiplied by 0 will give us 0.
We can rewrite this in many different ways:
![17x^(5)y^(2) = 17x^(5)y^(2) + 0x^(6)y^(4) + 0x^(4)y^(6) + [...]](https://img.qammunity.org/2018/formulas/mathematics/high-school/wpdxp0rk4iw3wi63t1rgg5rco0jnifmmu5.png)
Since every other factor cancels out to be 0, then we say that they are non-existent, because even, if in hindsight they do exist, they don't affect our final polynomial.
So, we can say that the degree of this polynomial, highest power, is 7.