Answer:
6
Step-by-step explanation:
y^3 + 7x^5 - 9x^6
Here,
degrees are 3, 5, and 6.
The degree of the polynomial is the highest / greatest number in the degree.
Out of 3, 5 and 6,
6 is the highest / greatest number.
Hence,
the degree of the given polynomial is 6.
