#### Answer

$x^{2}+x-20$

#### Work Step by Step

Make a table of products.
$\begin{array}{rll}
& x & -4\\
\hline x |& x^{2} & -4x\\
5 |& 5x & -20
\end{array}$
Answer: $x^{2}-4x+5x-20$, or $x^{2}+x-20$.

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Published by
Prentice Hall

ISBN 10:
0133281140

ISBN 13:
978-0-13328-114-9

$x^{2}+x-20$

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