Question

1.
Write y = x2 - 4x – 5 in the form y = (x + h) + k
Someone please help meee

Answer 1

y = (x - 2)² - 9

Explanation:

Using the method of completing the square

add/ subtract ( half the coefficient of the x- term)² to x² - 4x

y = x² + 2(- 2)x + 4 - 4 - 5

y = (x - 2)² - 9