Find by substituting for all occurrence of in .

Simplify each term.

Apply the product rule to .

Raise to the power of .

Multiply by .

Multiply by .

Check if .

Since , the function is not even.

The function is not even

The function is not even

Find .

Multiply by .

Apply the distributive property.

Simplify.

Multiply by .

Multiply by .

Multiply by .

Since , the function is not odd.

The function is not odd

The function is not odd

The function is neither odd nor even

Determine if Odd, Even, or Neither f(x)=-9x^4+5x+3