Question

If f(x)=3x^3 +3x^2+3, what is f(-1)?

Answer 1

Function given:

`f(x)=3x^3+3x^2+3`

To get f(-1), we have to replace x by -1 as follows:

`f(-1)=3(-1)^3+3(-1)^2+3`

`f(-1)=3\cdot(-1)+3\cdot1+3`

`f(-1)=-3+3+3`

Answer:

`f(-1)=3`