Let p(x)=9x-5 and q(x)=6√5 . Find u(x) given that q(x)=p(u(x)).

Question

I am having a lot of trouble figuring out this answer. Any help is appreciated! Thank you!

Answer 1

For me finding the answer is easier if I substitute y for u(x).

q(x) = p(y)

p(y) = 9y - 5

6√5 = 9y - 5

(6√5 + 5)/9 = y = u(x)

So u(x) is a little more than 2.