Question

for what value of k,(-4) is a zero of the polynomial-z-(2k+2)​

Answer 1

Answer:

k=1

Step-by-step explanation:

if -4 is a zero of -z- (2k+2)

=> if putting z= -4 it become to zero

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

=> 4-2k-2= 0

=> -2k= -2

=> k= 1

therefore for k=1 ,(-4) is a zero of the polynomial.