Question 635378
  <pre><font face = "Tohoma" size = 3 color = "indigo"><b> 
Hi,
{{{(4sqrt(5)+5)(4sqrt(5)+ 5)}}} = {{{80 + 40sqrt(5)+ 25 = 105 + 40sqrt(5) }}}
F	First terms   80
O	Outside terms 20{{{sqrt(5)}}}   
I	Inside terms  20{{{sqrt(5)}}}
L	Last terms    25