#### Answer

x= 0 or 4

#### Work Step by Step

Rewrite the equation in standard form.
x$^2$=4x
x$^2$-4x=0
Factor out the GCF.
x(x-4)=0
Set each variable factor as equal to zero and then isolate the variable to find the solutions.
x=0 or x-4=0
x=0 or x=4
Enter the original equation into your graphing utility to observe that the graph crosses the x-axis at 0 and 4.