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The function F(X) = kx² - 12x + 18 has a maximum value when x = -2. Find the value of k and the maximum value of f(x).
Choose the right answer:
Option A k = 10, maximum value of F(X) = 50
Option B k = 5, maximum value of F(X) = 40
Option C k = -1, maximum value of f(x)= 20
Option D k = -3, maximum value of f(x)= 30
 OkazakiDaisuke posted hơn một năm qua
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