Question 629689
  <pre><font face = "Tohoma" size = 3 color = "indigo"><b> 
Hi,
{{{(2sqrt(3)+3)(2sqrt(3)-3)}}} = 12 - 9 = 3
F	First terms  4·3
O	Outside terms -6sqrt(3)
I	Inside terms  +6sqrt(3)
L	Last terms    -9