Problem

Let $f$ and $g$ be defined by the table to the right. Find the following.
\[
\sqrt{f(-2)-f(-1)}-[g(1)]^{2}+f(-3) \div g(1) \cdot g(-2)
\]
\begin{tabular}{|r|r|r|}
\hline$x$ & $f(x)$ & $g(x)$ \\
\hline-3 & 3 & 8 \\
\hline-2 & 0 & 9 \\
\hline-1 & -9 & 9 \\
\hline 0 & -9 & 0 \\
\hline 1 & -8 & -3 \\
\hline
\end{tabular}
\[
\sqrt{f(-2)-f(-1)}-[g(1)]^{2}+f(-3) \div g(1) \cdot g(-2)=
\]
(Simplify your answer.)

Answer

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Answer

Final Answer: \(\boxed{-24}\)

Steps

Step 1 :From the table, we find that $f(-2) = 0$, $f(-1) = -9$, $g(1) = -3$, $f(-3) = 3$, and $g(-2) = 9$.

Step 2 :Substitute these values into the expression: $\sqrt{f(-2)-f(-1)}-[g(1)]^{2}+f(-3) \div g(1) \cdot g(-2) = \sqrt{0-(-9)}-(-3)^{2}+3 \div -3 \cdot 9$

Step 3 :Simplify the expression: $\sqrt{9}-9-3 \cdot 9 = 3-9-27$

Step 4 :Further simplify the expression to get the final answer: $3-9-27 = -33+9 = -24$

Step 5 :Final Answer: \(\boxed{-24}\)

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