Question

Find the value of k if x -3 is a factor of k ^ x^3 - kx^ + 3 kx - x

Answer 1

xz-3 is factor of p(x) :x=3 : k(3^3) -k(3^2) +3k(3) -3;; 27k- 9k+9k -3 =0 ; 27k-3=0 :; 27k=3 :: k = 3/27 :: k=1/9