find (p,∘,k)(x) and (k,∘,p)(x) for p(x)= 6x-4 and k(x)= x^2-6x+8

Answer 1

p(k(x)) = 6(x^2-6x+8)-4 = 6x^2 - 36x + 48-4 = 6x^2 - 36x + 44

k(p(x)) = (6x-4)^2 - 6(6x-4) + 8

= 36x^2 - 48x + 16 - 36x + 24 + 8

= 36x^2 - 80x + 48