Find k such that (x+2) is a factor of (x^3-kx^2+3x+7k)

1 answer:

Over [174]3 years ago

4 0

X+2 =0
x= -2

subs x= -2 in the equation

(-2)^3 - k(-2)^2 +3(-2) +7k = 0
-8 - 4k - 6 +7k =0
3k = 14
k= 14/3

You might be interested in

Valentin [98]

12 to the second power is equal to 144

(12 x 12)

8 0

3 years ago

irga5000 [103]

Answer:

The slope is 2

Step-by-step explanation:

8 0

3 years ago

zlopas [31]

Answer:

see in pdf the solution is there.

Step-by-step explanation:

Download pdf

3 0

2 years ago

AVprozaik [17]

Well, some integers can be irrational, but not all! :)

3 0

3 years ago

Marina CMI [18]

I honestly don't know because i'm only in sixth grade but I think that it might be 30*.

5 0

3 years ago