Final answer:
The degree of the sum and difference of the given polynomials is 1.
Step-by-step explanation:
The degree of a polynomial is determined by the highest exponent of the variable in the polynomial. In the given polynomials, the exponent of the variable 'x' is the highest in both cases. Therefore, the degree of the sum and difference will be the same as the degree of the individual polynomials, which is 1.