Question 635380
  <pre><font face = "Tohoma" size = 3 color = "indigo"><b> 
Hi,
{{{(sqrt(x)+ sqrt(7))(sqrt(x)+sqrt(7))}}} = {{{x +2sqrt(7x) +7 }}}
F	First terms   x
O	Outside terms {{{sqrt(7x)}}}   ||Note:{{{sqrt(p)*sqrt(q) = sqrt(p*q)}}} 
I	Inside terms  {{{sqrt(7x)}}}
L	Last terms    7