Question

How do you solve using the completing the square method `x^2-2x-4=0`?

Answer 1

`x = 1 +- sqrt5`

Explanation:

`x^2 - 2x = 4`
`x^2 - 2x + 1 = 4 + 1`
`(x - 1)^2 = 5`
`(x - 1) = +- sqrt5`
`x = 1 +- sqrt5`