Question

Make a polynomial
-1,-4,2

Answer 1

`x^3+3x^2-6x-8`

Explanation:

Unfortunately due to your very vague "question", I do not know for sure if -1, -4, and 2 are X values. But assuming they are...

Just like with quadratics, you can foil to easily identify the X value. But this time we are reversing it, and instead of 2 now we have 3.

To set up your polynomial, it should look something like this:

`(x+1)(x+4)(x-2)`

Now you can FOIL it if it requires you, which I have done for you.

`x^3+3x^2-6x-8`