Question

Which of the following numbers must be added to complete the square in the equation below? x^2 +16x=5 27

O A. 64
O B. 25
O C. 16
O D. 8​

Answer 1

A) 64

Explanation:

16/2=8

8^2= 64

x^2 +16x +64= 69

(x +8)^2= 69