Question

Given the functions k(x) = 2x^2 − 7 and p(x) = x − 4, find (k ∘ p)(x).

Answer 1

= 2x^3-8x^2-7x+28

Explanation:

Multiply k(x) by p(x):

(2x^2-7)(x-4) = 2x^3-8x^2-7x+28

(don't forget to add the exponent when you multiply it by x: 2x^2*x = 2x^3)