Question

value of k for which (x^2-kx-42) divisible by (x-7)is (ch-polynomials​

Answer 1

Answer:

Step-by-step explanation:

If x-7 is a factor ( is divisible) of x^2-kx-42

Then if we put x=7 then the above polynomial become equal to 0

So 49-7k-42=0

7-7k=0

7=7k

Hence k=1