Question

How do you solve `x^2 – 4x + 1 = 0` by completing the square?

Answer 1

`x =2+sqrt 3 or x= 2 - sqrt3`

Explanation:

`x^2-4x+1=0 or x^2-4x+4 -4+1=0 or (x-2)^2 = 3 or x-2 = +- sqrt (3) :. x =2+sqrt 3 or x= 2 - sqrt3` [Ans]