Question

If f(x) = 3x^5 + 4x^4 + 5, then what is the remainder when f(x) is divided by X + 3?

Answer 1

Answer:

remainder: -400

Explanation:

$\sf f(x) = 3x^5 + 4x^4 + 5$

divided by x + 3

• x + 3 = 0

• x = -3

insert x = -3 in the function

$\sf f(x) = 3(-3)^5 + 4(-3)^4 + 5$

$\sf f(-3) = -400$