What is the indefinite integral of f (x) = x² + 12? f (x² +12) dx = 3 + 12x + C 1 3x³ S(x² + 12)dx = 3x³ + 12x + C X S(x² + 12)dx = ½x² + 12 + C S (x² + 12)dx = √x+12+C

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