Answer:
degree is 5
Explanation:
![-6x^3y^2+5x^4-7z](https://img.qammunity.org/2019/formulas/mathematics/college/s7e1z0h2wg2wfs7q3ckrchdo74rcqgmdbn.png)
To find the degree of the polynomial we count the degree of each term(each monomial)
degree of -6x^3y^2 is 3+2=5
degree of x^4 is 4
degree of z is 1
The highest degree of the minomial is 5
So the degree of the polynomial is 5