Question

How do you solve using completing the square method `x^2+4x-3=0`?

Answer 1

`x=sqrt(7)-2`

Explanation:

`x^2+4x=3`
`x^2+4x+4=3+4`

`(x+2)^2=7`

`x+2=sqrt(7)`

`x=sqrt(7)-2`