Question

I need help converting these into different forms, I've got some down but have a few more to go!

attachment below

Answer 1

do you know what a "perfect square trinomial" is?

Answer 2

say for the 1st one
$$
y= x^2-2x-3 \implies (x^2-2(x)(\color{red}{?})+(\color{red}{?})^2)-3
$$
what number do you need there, to make a perfect square trinomial?

Answer 3

I don't know what a perfect square trinomial is

Answer 4

http://math.tutorvista.com/algebra/perfect-square-trinomial.html

Answer 5

thanks!!