Question

answer the following question ​

Answer 1

Given.

n=3 is root of the given quadratic equation. n^2 =2kn-6

putting n=3 in the equation we get;

3×3 =2×3×k -6

=>9=6k-6

=>9+6=6k

=>15=6k

=>k=15/6

=>k=5/2

Hope it helps...

Regards,

Leukonov/Olegion.