Question

Given `f(x)=-5x^4 + 4x^3 - 7x^2 - 6x - 3`, what is `f(-3)`?

Answer 1

`f(-3)=-561`

Explanation:

Simply substitute `x=-3` into the function `f(x)`.

`therefore f(-3)=-5(-3)^4+4(-3)^3-7(-3)^2-6(-3)-3`

`=-405-108-63+18-3`

`=-561`.