As $x \rightarrow-\infty, f(x)=-5 x^{5}+7 x^{4}+8 \rightarrow$ ------------ $\infty$ Or $-\infty$

Short Answer

As $x \rightarrow-\infty, f(x)=-5 x^{5}+7 x^{4}+8 \rightarrow$ ------------ . Enter "infinity " or "- infinity" for $\infty$ or $-\infty$ .