Question

m²--2m-1=0 by completing square method​

Answer 1

Hey friend, Here is your answer-

${m}^{2} - 2m = 1$
Third term = (1/ 2× co-efficient of m)^2

Third term = 1

Add 3rd term on both sides,
m2- 2m+1= 2
(m-1)=+/-root 2
m= 1 + root 2
or
m = 1 - root 2

Hope it will help you.