Answer:
D. (x − 9)(x − 3)
Explanation:
d.(x - 9) (x - 3)
x² - 12x + 27 = 0
x² - 9x - 3x + 27 = 0
x(x - 9) - 3(x - 9) = 0
(x - 9) (x - 3) = 0
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