Question

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

Answer 1

Answer:

p (x) = x² - x - (2k + 2)

» p (-4) = (-4)² - (-4) - (2k + 2)

» 16 + 2 - 2k = 0

» k = 9

Therefore, the value of k is 9.