Question

Use the remainder theorem and synthetic division to find f(k) for the given value of k.

Answer 1

3

Explanation:

Given that,

`f(x) =-x^3-8x^2-15x+3`

We need to find the value of f(x) when k = -5

Put x = -5 in th given function.

So,

`f(-5) =-(-5)^3-8(-5)^2-15(-5)+3\\\\=3`

Hence, the value of the given function is equal to 3.