## Calculus (3rd Edition)

$$f(x)=g(x)+ h(x)$$ $g(x)=2x^4+12x^2+4$ is even and $h(x)=-5x^3-3x$ is odd.
We can write $f(x)$ as follows $$f(x)=g(x)+ h(x)$$ where $g(x)=2x^4+12x^2+4$ is an even function and $h(x)=-5x^3-3x$ is an odd function.