Express x in terms of the constants

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SUMMARY

The expression A(Bx + 1) = C*d^(2x) cannot be explicitly solved for x in terms of the constants A, B, C, and d due to the presence of a linear term on the left and an exponential term on the right. The Lambert W-function is the most suitable approach for approximating solutions, although it does not yield a precise expression. Additionally, a graphical method can be employed to analyze the intersection of the linear function f(x) = ABx + A with the exponential function g(x) = Cd^(2x) to study the existence of solutions.

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I have the expression, A(Bx + 1) = C*d^(2x) where A,B,C and d are constants. How to arrive at an expression for x in terms of A,B,C and d?

I have tried doing this:

Log [A(Bx + 1)/C] = Log [d^(2x)]

2xLog(d) = Log[A(Bx + 1)/C]

but I'm unable to arrive at an explicit expression of x in terms of A,B,C and d.
Can someone please help?

Thanks in advance!
 
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This cannot be done, since basically you have a linear term on the left and an infinite sum on the right. The best you can get is by using the Lambert W-function which isn't a function to be exact.
 
vktsn0303 said:
I'm unable to arrive at an explicit expression

because you can't, the best thing you can do is using the Lambert W-function as suggested by @fresh_42 or there is also a graphical method that consist to intersect the linear function ##f(x)\,=\, ABx+A## with the exponential function ##g(x)\,=\,Cd^{2x}##, changing the value of your parameters you can study the existence of solutions of your equation.

Ssnow
 

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