As above, let $$f(x) = 3\cdot\frac{x^4+x^3+x^2+1}{x^2+x-2}.$$Give a polynomial $g(x)$ so that $f(x) + g(x)$ has a horizontal asymptote of 0 as $x$ approaches positive infinity.

If you are smart enough to understand the question and any answer you might get then you are smart enough to learn to present your question properly.

Open the latex box in the ribbon and copy and paste your latex into it.

Just delete the dollar signs that surround it.