Question

Is 5x^4-x^2+2 all over 4 a rational function?

Answer 1

Is \[\frac{ 5x^4+x^2+2 }{ 4 }\] a rational function?

Answer 2

A rational function is of the form
\[\frac{p(x)}{q(x)}\]
where \(q(x) \ne 0\)
here q(x)=4
so it's a rational function