What is the derivative of \(f(x) = \ln(x^2 + 3x)\) with respect to \(x\)?
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What is the value of x when the exponential function f(x) = 10^x is equal to the exponential function g(x) = e^x?
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Math question: In triangle ABC, the angle bisector of angle A intersects side BC at point D. If the length of AD is 6 cm and BD is 8 cm, what is the length of DC?