$\"\"$

The given expression is $\"\"$ .

The expression $\"\"$ is contains three variables.

The variable $\"\"$ has degree 1,the variable $\"\"$ has degree 1 and the variable $\"\"$ has degree 2.

The total degree is 1 + 1 + 2 = 4.

So,the degree of $\"\"$ is 4. $\"\"$

The degree of $\"\"$ is 4.