Suppose that the functions p and q are defined as follows. p(x)=-x-1 q(x)=-2x^2-2 Find the following. (p*q)(5) (q*p)(5)

Answer 1

(p•q)(5) = p(q(5)) = p(- 2·25 - 2 ) = p(- 52) = 52 - 1 = 51;

(q•p)(5) = q(p(5)) = q(- 5 - 1) = q(- 6) = - 2(- 6)² - 2 = - 74.