Question

Given the polynomial function below, find F(-1). F(x) = -x ^3 - x ^2 + 1

Answer 1

`f(-1) = 1`

Explanation:

Given

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

Finding f(-1) means, we have to put -1 in the places of x in the function,

So, putting x=-1 in the function

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

As the power 3 is odd, the minus will remain the same, while in the 2nd term minus will be eliminated due to even power. So,

=>
`-1-1+1`

=> 1

Hence,

`f(-1) = 1`