Quadratic Functions

Question

3

Put the equation  into the form :

Answer:  = 

Answer 1

y = x^2 + 2x - 3

complete the square for the first two terms

y = x^2 + 2x + 1 - 3 - 1 (subtract 1 to balance off adding 1 to complete the square)

y = (x + 1)^2 - 4