QUESTION:- FIND VALUE OF K

ANSWER:- REFER THE ATTACHMENT

HOPE THIS IS THE CORRECT ANSWER

x²-kx-20

x-3=0

x=3

put x=3, we get

3²-3k-20=0

9-20-3k=0

-11-3k=0

-11=3k

-11/3=k

therefore, the value of k is -11/3

Yar prakriti mene kuch time msg ni kiya to tum meko bhul hi gyin... mene band krdiya tha QKI mere boards aane the par mene ye chrome me chala rkha tha to jab m breaktime krti thi to notification dekhti thi.. par tumari trh se....

*feeling sad*