Question 660388
  <pre><font face = "Tohoma" size = 3 color = "indigo"><b> 
Hi,
                                                        {{{y = (x+3)^2}}}
 {{{(-2x-6)^2 = (-2(x+3))^2 = (-2)^2(x+3)^2 = 4(x+3)^2 = 4y}}}