Question

What is one of the roots? (x − 5)2 = 9

Answer 1

The solutions are x=8 and x=2

Explanation:

(x − 5)^2 = 9

Take the square root of each side

sqrt( (x − 5)^2) = ±sqrt(9)

x-5 = ±3

x-5 = 3 x-5 = -3

Add 5 to each side

x-5+5 = 3+5 x-5+5 = -3+5

x= 8 x=2