Question 178577
I assume it's:
{{{(3a^2+7ab+2b^2)/(a^2+2ab)}}} * {{{(a^2-ab)/(3a^2+ab)}}}
Factor, then cancel: a, (3a+b), and (a+2b)
{{{((3a+b)(a+2b))/(a(a+2b))}}} * {{{(a(a-b))/(a(3a+b))}}} = {{{((a-b))/a}}}