Question

How to solve x²-2rx-2r²quadratic
equation by root method
?​

Answer 1

Answer:

=x^2 -2rx-2r^2

=x^2-rx-rx-2r^2

=x(x-r)-r(x-2r)

(x-r)(x-2r)

=(x-r)=0 ;(x-2r)=0

=x=r ; x=2r

Answer