Complete the square to rewrite y=x^2+4x+1 in vertex form

y = (x + 2)² - 3

Step-by-step explanation:

 y = x² + 4x + 1

-1                 -1  

y - 1 = x² + 4x

y - 1 + ____ = x² + 4x + ____

             ↑              ↓         ↑    

y - 1 +  4   = x² + 4x +  4  

   y + 3      = (x + 2)²

      -3                      -3

    y           =  (x + 2)² - 3

Part A =1200 copies

Part B = 6 hours

Step-by-step explanation:

Part A is 480 divided by 4 = 120 and then 120 times 10 = 1200

Part B is 720 divided by 120 = 6

hope this helps