Question 90970
Find the squares:
{{{(7p+6q)^2}}} Rewrite this as:
{{{(7p+6q)(7p+6q)}}} Now use the FOIL method to multiply the terms in this order: 
F...First. {{{(7p)(7p) = 49p^2}}}
O...Outer. {{{(7p)(6q) = 42pq}}}
I...Inner. {{{(6q)(7p) = 42pq}}}
L...Last.  {{{(6q)(6q) = 36q^2}}} now put them all together to get:
{{{(7p+6q)^2 = 49p^2+84pq+36q^2}}}