Question

Using the function attached.
Find (f+G)(x)

Answer 1

We have been given two functions
`f(x)=-8x^3+5x^2+7x+4` and
`g(x)=8x^3-2x+3`. We are asked to find
`(f+g)(x)`.

We will use composite function property
`(f+g)(x)=f(x)+g(x)` to solve our given problem.

`(f+g)(x)=-8x^3+5x^2+7x+4+8x^3-2x+3`

Now we will combine like terms as:

`(f+g)(x)=-8x^3+8x^3+5x^2+7x-2x+4+3`

`(f+g)(x)=5x^2+5x+7`

Therefore, the value of
`(f+g)(x)` would be
`5x^2+5x+7`.