## Introductory Algebra for College Students (7th Edition)

x is the length and width of the open box The volume of box is represented by the following equation: $x\times x\times3=75$ Simplify. $3x^2=75$ Divide each side by 3. $3x^2\div 3=75\div3$ Simplify. $x^2=25$ Take the square root of each side. $\sqrt{x^2}=\sqrt{25}$ Simplify. $x=5$