Question

X^2 -2x -1 = 0

Pls help...show work and the answer

Answer 1

`x^2-2x-1=x^2-2x+1-2=(x-1)^2-2=0`

Solve for
`x`:


`(x-1)^2-2=0`

`(x-1)^2=2`

`x-1=\pm\sqrt2`

`x=1\pm\sqrt2`