Suppose
\displaystyle{f(x) =
\left\lbrace \begin{array}{ll}
x^2+8x+21, & x < -4, \\
-2, & x = -4, \\
-x^2-8x-11, & x > -4.
\end{array} \right.}
Evaluate the following limits (with a function of x in the first answer blank and the value of the limit in the second answer blank) and evaluate the function.

\displaystyle{\lim_{x\to -4^{-}} f(x) = \lim_{x\to -4^{-}} } = . \displaystyle{\lim_{x\to -4^{+}} f(x)= \lim_{x\to -4^{+}} } = . \displaystyle{f(-4)=} .

You can earn partial credit on this problem.