Question

Can someone pls help me with this

Answer 1

3a) h(x)=(x² +1)^3
h(x)=f(g(x))

we can deduce that
f(x)= x^3 and g(x)= x² +1

b) h(x)= √(3x^(3)+6x)
h(x)=f(g(x))

we can deduce that
f(x)= √x and g(x)= 3x^(3)+6x

c)h(x)= √(2x+5) +1
h(x)=f(g(x))

we can deduce that
f(x)= √x +1 and g(x)= 2x+5

for question 4
perhaps the answer is f(x)+g(x)