Question

use synthetic divison AND the remainder theorem to find f(-2) if f(x)=x^4+5x^3-3x^2-20

Answer 1

remainder theorem f(-2) = (-2)^4 + 5(-2)^3 -2^(-2)^2 - 20

f(-2) = -52


then the remainder when x^4 + 4x^3 -2x^2 - 20 is divided by (x + 2) is -52/(x+2)

Answer 2

im so lost

Answer 3

the remainder theorem is simply replacing x with a nominated value and evaluating

in the question you need to replace x with -2 and then evaluate

Since you used x = -2 then the function would be divided by x + 2


you would need to do the division