## Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

$x=\left\{ 0,7 \right\}$
Equating each factor to zero (Zero Product Principle), then the solutions to the equation, $x(x-7)=0 ,$ is \begin{array}{l} x=0 ,\\\\\text{OR}\\\\ x-7=0 \\\\ x=7 .\end{array} Hence, $x=\left\{ 0,7 \right\} .$