Determine the value(s) of \( k \) for which \( f(x)=k \) will have two unequal positive real roots.
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Mind Expander
For the function \( f(x) \) to have two unequal positive real roots when set equal to \( k \), the graph of the function must intersect the horizontal line \( y = k \) at two distinct points in the positive \( x \)-region. This generally requires the following conditions: 1. The value \( k \) must be less than the maximum value of \( f(x) \) (assuming a maximum exists). 2. The function \( f(x) \) must be increasing or decreasing around the critical points such that it fully crosses the line \( y = k \) in the positive \( x \)-axis. In conclusion, find the maximum value of \( f(x) \) (if bounded), identify where the function is positive and continuously varying, and select \( k \) in that range excluding the maximum point and taking care to ensure the roots remain distinct. Happy solving!