In Exercises, find (x), the third derivative of , and (4) (x), the fourth derivative of

In Exercises, find ƒ″″(x), the third derivative of ƒ, and ƒ⁽⁴⁾(x), the fourth derivative of ƒ, for each function.

ƒ(x) = -2x⁴ + 7x³ + 4x² + x