Question

Consider the polynomial function h(x)=x³+2x-3. Find h(3).

Answer 1

`h(3)=30`

Explanation:

We have the polynomial:

`h(x)=x^3+2x-3`

`h(3)` means that we have to replace in the polynomial
`h(x)` with
`x=3`.

Then,

`h(x)=x^3+2x-3\\h(3)=3^3+2.3-3\\h(3)=27+6-3\\h(3)=27+3\\h(3)=30`

We obtain that the polynomial h(x) with x=3 is 30.

`h(3)=30`