Math help please?

Question

The functions q and r are defined as follows.

 

q(x)=-2x-1

r(x)=x²-2

 

Find the value of q(r(4))

Answer 1

Evaluate r(4).

 

r(4) = 4² - 2 = 16 - 2 = 14

 

Plug the result into q(x).

 

q(14) = -2(14) - 1 = ?

 

That is all there is to it.