Question

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

Answer 1

0=(-4)^2-(-4)-(2k+2)
0=16+4-(2k+2)
0=20-2k-2
0=18-2k
2k=18
k=18/2
k=9

Answer 2

this is the answer..k=9,