Question 74558
{{{((6x-6y)/4)/((x^2-y^2)/(x+y))}}}
{{{((6x-6y)/4)/((x+y)(x-y)/(x+y))}}}Factor {{{x^2-y^2}}} into {{{(x+y)(x-y)}}}
{{{((6x-6y)/4)/(cross(x+y)(x-y)/cross(x+y))}}}Cancel like terms
{{{(6(x-y)/4)/((x-y)/1)}}}Factor out a 6 on the numerator
{{{(6(x-y)/4)(1/(x-y))}}}
{{{(6*cross((x-y))/4)(1/cross(x-y))}}}
{{{6/4}}} which reduces to
{{{3/2}}}
So in other words, 
{{{((6x-6y)/4)/((x^2-y^2)/(x+y))=3/2}}}
You should only get one {{{3/2}}} term. Check to see if you didn't add a {{{3/2}}} term somewhere in your solution.