As $x \rightarrow-\infty, f(x)=\frac{4^{x}-6}{5^{x}+2} \rightarrow \ldots$ Enter "Infinity " or "- Infinity" For "Infinity

Short Answer

As $x \rightarrow-\infty, f(x)=\frac{4^{x}-6}{5^{x}+2} \rightarrow \ldots$ . Enter "infinity " or "- infinity" for $\infty$ or $-\infty$ .