Help. I have a D in this class. Complete the square to re-write the quadratic function in vertex form:

y = (x - 4)² - 26

Step-by-step explanation:

To complete the square, all we need to do is take term -8x, and add enough to make the equation come out to the square of half that.  Half of -8 is -4, so we need to add 26 to the equation to end up at 16:

Giving us the final result

28

step-by-step explanation:

8+8+6+6