Chapter 6.2, Problem 9E

To determine

To fill: The blank spaces in the statements given below if the expression is $\left(x+1\right)\left(x-3\right)$.

$\begin{array}{ccc}\hfill F& =& \boxed{}\hfill \\ \hfill O& =& \boxed{}\hfill \\ \hfill I& =& \boxed{}\hfill \\ \hfill L& =& \boxed{}\hfill \end{array}$

Therefore, $\left(x+1\right)\left(x-3\right)=\boxed{}$.