(x-1)^2=2 , what's x?
Solve for x: (x-1)^2 = 2
Take the square root of both sides: x-1 = sqrt(2) or x-1 = -sqrt(2)
Add 1 to both sides: x = 1+sqrt(2) or x-1 = -sqrt(2)
Add 1 to both sides: Answer: |x = 1+sqrt(2) or x = 1-sqrt(2)
