Question: "Factorize the expression 3x^2 + 6x + 9 using the distributive property."
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Math question: Find the absolute extrema of f(x) = 4x^3 - 9x^2 + 2 on the interval [-2, 3].
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Math question: In triangle ABC, the angle bisector of angle A intersects side BC at point D. If angle BAD = 30Β° and angle ACD = 40Β°, what is the measure of angle BAC?