Make sure you rewrite the equation leaving all the terms on one side, and that you factor out the greatest common factor if it exists. Then, apply the Zero Product Property.
We found that the solutions to the given equation are a=0 and a=12.
Checking the Answer
To check our answer, we will graph the related function y=x(x-12) using a calculator. Note that in the calculator we will use the variable x instead of a.
We can see that the x-intercepts are 0 and 12. Therefore, the solutions are correct.
