** Final answer to the problem

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** Step-by-step Solution **

** How should I solve this problem?

- Choose an option
- Solve for x
- Find the derivative using the definition
- Solve by quadratic formula (general formula)
- Simplify
- Find the integral
- Find the derivative
- Factor
- Factor by completing the square
- Find the roots
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Apply the property of the product of two powers of the same base in reverse: $a^{m+n}=a^m\cdot a^n$

Learn how to solve logarithmic differentiation problems step by step online.

$2\cdot 5^{-4}\cdot 5^x+15=265$

Learn how to solve logarithmic differentiation problems step by step online. Solve the exponential equation 25^(x-4)+15=265. Apply the property of the product of two powers of the same base in reverse: a^{m+n}=a^m\cdot a^n. Calculate the power 5^{-4}. Multiply 2 times \frac{1}{625}. We need to isolate the dependent variable x, we can do that by simultaneously subtracting 15 from both sides of the equation.

** Final answer to the problem

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