Question

Based on the polynomial remainder theorem, what is the value of the function when x = 4?

f(x)=x^4−2x^3+5x^2−20x−4

What does f(4) =

Answer 1

f(4) = 124

Explanation:

The polynomial remainder theorem says the value of the function is the remainder when when the function is divided.

Using synthetic division.

f(4)=

1 -2 5 -20 -4

4 4 8 52 128

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1 2 13 32 124