Question

if (2,k) us a solution to 5x-ky=2 then find k​

Answer 1

Step-by-step explanation:

(2,k)

5x-ky = 2

5(2)- k(k) = 2

10-k^2 = 2

-k^2 = 2-10

-k^2 = -8

k^2 = 8

k=√8

or

k= 2√2