Question 73082
<pre>
Simplify. 
         w^4u^3
         ______ 
          w^4u 

Expand your numerator and denominator

             w*w*w*w*u*u*u
            _______________

               w*w*w*w*u

divide common factor

             {{{cross (w*w*w*w*u)}}}*u*u
            _______________

               {{{cross (w*w*w*w*u)}}}


                 u*u
                _____
                  1



                 u^2