8. \( h(x)=\ln \left(x+e^{3 x}\right) \)
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The Deep Dive
Did you know that the natural logarithm functions are deeply tied to exponential growth, which can be seen in various fields like finance and biology? The function \( h(x) = \ln(x + e^{3x}) \) blends polynomial and exponential elements, showcasing how logarithmic functions can help simplify expressions involving growth rates while also enabling us to solve for roots and analyze limits! When working with logarithmic functions, a common mistake is forgetting that they are only defined for positive arguments. Ensure that \( x + e^{3x} > 0 \) for all \( x \) by recognizing that \( e^{3x} \) is always positive while \( x \) could be negative. This will help avoid domain issues and streamline your problem-solving process!