Answer
$x=\{ -3,1 \}$
Work Step by Step
Equating each factor to zero (Zero Product Property), then
\begin{array}{l}\require{cancel}
x-1=0
\\\\\text{OR}\\\\
x+3=0
.\end{array}
Solving each equation results to
\begin{array}{l}\require{cancel}
x-1=0
\\\\
x=1
\\\\\text{OR}\\\\
x+3=0
\\\\
x=-3
.\end{array}
Hence, the solutions are $
x=\{ -3,1 \}
.$
