Question

If -4 is a zero of the polynomial x²-x-(2+2k), find the value of k.

Answer 1

Answer:

k= 9

Step-by-step explanation:

by the problem,

p(-4) = 0

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

16+4-(2+2k)=0

-(2+2k)= -20

2+2k= 20 [negative is on both sides so it cancels each other]

2k= 20-2

2k = 18

k = 18/2

= 9

Answer 2

Here is the answer.Hope it helps :)