Answer: 3
Explanation:
Our task is to find the degree of this polynomial.
Recall that a polynomial's degree is simply its highest exponent.
Let's look at the exponent of each of these terms, and spot the highest one.
- The term 6x³ has an exponent of 3.
- The term 3x has an exponent of 1.
- The term -8 has an exponent of 1.
The highest exponent is 3; therefore, it's the polynomial's degree.