Answer:
(x - 7.5)^2 = 34.25
Step-by-step explanation:
x^2 - 15x + 22 = 0
(x^2 - 15x + (b/2)^2) + 22 - (b/2)^2 = 0
(x^2 - 15x + 56.25) + 22 - 56.25 = 0
(x - 7.5)^2 + 22 - 56.25 = 0
