The degree of the function is even while the equation itself is neither even nor odd
How to know functions with even degree
In functions, when the degree is even the end points of the the curve is same direction. In the attached the curve the both endpoints are pointing upward. Hence we say the function has even degree
Odd functions are symmetric at the origin, while even function has symmetry at the y-axis. The graph do not show symmetry on both the origin or the y axis hence we say the function is neither even nor odd