Question

for what values of k the roots of kx²+(k-1)x+(k-1)=0 are equal?

Answer 1

it is right or not please tell

Answer 2

if roots are equal
b^2-4ac=0
(k-1)^2-4k*(k-1)=0
k^2-2k+1-4k^2+4k=0
-3k^2+2k+1=0