Question

MEGA POINTS... CAN CHAT AFTERWARDS...

Answer 1

Answer:

B

Step-by-step explanation:

Given

x² - 18x + --- = 4 + ----

To complete the square

add ( half the coefficient of the x- term )² to both sides

x² + 2(- 9)x + 81 = 4 + 81

(x - 9)² = 85 ( take the square root of both sides )

x - 9 = ± $\sqrt{85}$ ( add 9 to both sides )

x = 9 ± $\sqrt{85}$  ← exact solutions