Question 76452
First we need to find the GCF among 12,-40, and 12. The GCF of these numbers is 4, so we can factor out a 4. Since we have common terms of {{{(p+2q)^2}}}, we can factor that as well. 

So lets factor out a 4 and a {{{p+2q)^2}}} term

{{{4(p+2q)^2(3(p+2q)^2-10(p+2q)+3)}}} This is our factored expression