Question 381793
  <pre><font size = 3 color = "indigo"><b>
Hi,         
finding the roots of function
x^2+5x+6=0
factoring
(x+2)(x+3) = 0 Note:SUM of the inner product(2x) and the outer product(3x) = 5x
(x+2) = 0
   x = -2
(x+3) = 0
   x = -3
{{{drawing(300,300, -6, 6, -6, 6, grid(1),
circle(-2, 0,0.3),
circle(-3, 0,0.3),
graph( 300, 300, -6, 6, -6, 6,x^2+5x+6 ))}}}