Question

If (x - 3) ^2 = 5, then

A) x = -3±√5
B) x = 3±√5
C) x = 5±√3

Answer 1

x = 3 ± √5

Explanation:

(x - 3)² = 5

=> x - 3 = ± √5

=> x = 3 ± √5

Answer 2

(x - 3)^2 = 5.....take sqrt of both sides, eliminating the ^2
x - 3 = (+-) sqrt 5.....add 3 to both sides
x = 3 (+-) sqrt 5 <=== answer B