Question

for what value of k -4 is a zero of the polynomial x²-x-(2k+2)​

Answer 1

Answer:

k = 9

Step-by-step explanation:

Substitute x => -4 in polynomial

${x}^{2} - x - (2k + 2) = > {( - 4)}^{2} - ( - 4)$

$- (2k + 2) = 0 = > 20 - 2k - 2 = 0$

$= > 18 - 2k = 0 = > k = 9$

Hope it helps you.

Answer 2

Step-by-step explanation:

step by step solution is given in above pic