P(x) = 2x³ + 3x² - 5x - 12
P(3) = 2(3)³ + 3(3)² - 5(3) - 12
P(3) = 2(27) + 3(9) - 15 - 12
P(3) = 54 + 27 - 15 - 12
P(3) = 81 - 27
P(3) = 54
ANSWER: P(3) = 54
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P(x) = 2x³ + 3x² - 5x - 12
P(3) = 2(3)³ + 3(3)² - 5(3) - 12
P(3) = 2(27) + 3(9) - 15 - 12
P(3) = 54 + 27 - 15 - 12
P(3) = 81 - 27
P(3) = 54
ANSWER: P(3) = 54