Question 851290
<pre><font face = "Tohoma" size = 3 color = "indigo"><b> 
Hi,
a^2+7ab+10b^2 = 0
(a + 5b)(a+2b) = 0
F	First terms
O	Outside terms
I	Inside terms
L	Last terms

  (a + 5b) = 0,  a = -5b
0r (a+ 2b) = 0,  a = -2b