HELP PLS !! ILL MARK YOU THE BRAINLIEST PLS HELP Find the values of M that will give f as real zeros

Answer:
D
Step-by-step explanation:
Because first you need to make the equation negative because X^2 need to be positive (easier to do)
x^2-6x-m
What times to -6 are
(2times-3) (-2 times -3)
(1times -6) and (-1times 6)
neither of these will be above 9 so d is correct