^3�ã54^5

It seems like you have inputted a mathematical expression containing numbers with exponents. Let's break it down step by step.

The expression "^3�ã54^5" is not clear and may include some typographical errors. The '^' symbol usually represents exponentiation, where a number is raised to a power. However, the characters "�ã" are not recognized mathematical symbols.

To solve an expression with exponents like "a^n", you need to know the base (a) and the power (n). In your expression, it is unclear what the base is since it is not specified.

If you have a specific arithmetic expression or if you can provide more details or corrections to your input, I would be happy to help explain how to solve it.