Question

If -4 is a zero of the polynomial x2
-x - 2(2 - 2k) then the value of k is ______​

Answer 1

Answer:

k = - 4

Step-by-step explanation:

(- 4)² - (- 4) - 2(2 - 2k) = 0

16 + 4 - 4 + 4k = 0

4k = - 16

k = - 4

Answer 2

Answer:

k= -4

Step-by-step explanation:

Given polynomial is :

x^2-x-2(2-2k)

and Zero of polynomial is -4.So after putting value of x= -4 the equation will be equal to zero.

(-4)^2-(-4)-2(2-2k)=0

16+4-4+4k=0

16+4k=0

4k=-16

k=-16/4

k= -4