Question

Which are the solutions to the given equation? Answers are rounded to the nearest hundredth when necessary.

x^2-2x-1=0

Answer 1

hi!!

Answer 2

add one get
\[x^2-2x=1\]complete the square get
\[(x-1)^2=1+1=2\] so
\[(x-1)^2=2\\
x-1=\pm\sqrt2\\
x=1\pm\sqrt2\]

Answer 3

just use the factorization method and have a look on @misty1212 explanation