Alas for my last 20 point question.
if correct = brainliest.

Find the roots of the equation below. x^2 - 6 + 9 = 0

The boiling point of water at an elevation of 0 feet is 212 degrees fahrenheit (°f). for every 1,000 feet of increase in elevation, the boiling point of water decreases by about 2°f. which of the following represents this relationship if b is the boiling point of water at an elevation of e thousand feet? a) e = 2b - 212 b) b = 2e - 212 c) e = -2b + 212 d) b = -2e + 212

Find the value of x. give reasons to justify your solutions! c ∈ ae