I need to know how to complete the square.. every website I go to about this is completely complicated.. my math teacher does it like so:
y = x^2 + 6x -7
y = x^2 + 6x + 3^2 - 9 - 7
y = (x + 3)^2 - 16
that I understand but..
if it were to say y = 2x^2 + 6x - 7
that's where I get...