How to prove that the expression x^3+(k-1)x^2+(k-9)x-7x3+(k−1)x2+(k−9)x−7 is divisible by (x-1) for all values of k?
3 Answers
Explanation:
Explanation:
A polynomial is divisible by
In our case, the sum of the co-effs. is given by,
See below.
Explanation:
is divisible by
so the claim should be divisible by