Question

(x+5) is a factor of x^3 - 20x + 5k, then find k

Answer 1

Step-by-step explanation:

HEY MATE YOUR ANSWER IS HERE ^_^

IF x+5 IS FACTOR OF x^3 - 20x + 5K

THEN x = -5 IS ROOT OF THE EQUATION

(-5)^3 - 20(-5) + 5K = 0

-125 + 100 + 5K = 0

5K = 25

K = 5

PLEASE MAKE ME A BRAINLIST ANSWER FOR THE QUESTION.

Answer 2

(X+5)=0
x=-5

x^3-20x+5k=0
(-5)^3-(20*5)+5k=0
125-100+5k=0
5k=-25
K=-5