Answer:
( f o f )(x) = f ( f (x))
= f (2x + 3)
= 2( ) + 3 ... setting up to insert the input
= 2(2x + 3) + 3
= 4x + 6 + 3
= 4x + 9Step-by-step
explanation:
Answer:
x - 1/x, which is also f(x)
Step-by-step explanation:
hf(x) = x - 1/x + 1
hf(x) = x + 1 - 1/x
ghf(x) = x + 1 - 1/x - 1 = x - 1/x = f(x)
