Question

3) g(x)= x3 + x
h(x) = x + 4
Find g(0)h(0)

Answer 1

`goh(x)=x^3+12x^2+49x+68`

Explanation:

`g(x) = x^3+x`

`h(x)=x+4`

We have to find

`goh(x)`

`goh(x) = g(h(x))=g(x+4)`

If
`g(x) = x^3+x`

`g(x+4) = (x+4)^3+(x+4)`

=
`x^3+12x^2+49x+68`

Hence our answer is

`goh(x)=x^3+12x^2+49x+68`