Jedida solved the quadratic equation x2−96=4x

Question

 by factoring. Her work is shown below. At which step did Jedida first make a mistake, if at all?

x2−96=4x

Step 1:  x2+4x−96=0
Add  4x
 to both sides.
Step 2:  (x+12)(x−8)=0
Factor. 
Step 3:  x+12=0
 or  x−8=0
Use the Zero Product Property. 
x=−12
 or  x=8

Answer 1

Jedida did not make any mistakes in solving the quadratic equation.