Question

let f(x) = x2 3x − 4 and g(x) = x 5. find f(x) ⋅ g(x). x3 3x2 16x − 20 x3 5x2 14x − 20 x3 8x2 11x − 20 x3 9x2 19x − 20

Answer 1

The question is asking to choose among the following choices that is the computed value or function of f(x).g(x) and base on the functions and choices, I would say that the answer would be x3 8x2 11x − 20 x3 9x2 19x − 20. I hope you are satisfied with my answer and feel free to ask for more

Answer 2

`f(x) \cdot g(x)=x^3+8x^2+11x-20`

Explanation:

let
`f(x) = x^2+3x-4` and
`g(x)=x+5`

Now we find f(x) times g(x)

Replace f(x) and g(x) and then multiply it

`f(x) \cdot g(x)=(x^2+3x-4)(x+5)`

Multiply each term inside the second parenthesis

`f(x) \cdot g(x)=x^3+5x^2+3x^2+15x-4x-20`

Now combine like terms

`f(x) \cdot g(x)=x^3+8x^2+11x-20`