the degree of the polynomial is 8
The degree of a polynomial is determined by the largest power of an individual term or the sum of the exponents if more than 1 variable
3x² → is degree 2
6xy → is degree 2 ( sum of 1 and 1 )
- 10
→ is degree 5
→ is degree 6
- 10x³
→ is degree 8 ( sum of 3 and 5 )
the term with largest power is - 10x³

The degree of the polynomial is 8