 
Arturo O. answered  11/23/19
Experienced Physics Teacher for Physics Tutoring
Although this problem does not involve common factors, you can still do this:
Suppose you have
AJ + K
and you want to factor out A. Multiply the second term by A/A.
AJ + K = AJ + (A/A)K = A(J + K/A)
Now try applying this to the problem.
 
     
             
                     
                    