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Does anybody know how to expand binomials on this calculator and how to do for example log2 84? : r/6thForm
![Amazon.com : Helect 2-Line Engineering Scientific Calculator, Suitable for School and Business (Blue) : Office Products Amazon.com : Helect 2-Line Engineering Scientific Calculator, Suitable for School and Business (Blue) : Office Products](https://m.media-amazon.com/images/I/715UfY0pOoL._AC_SL1500_.jpg)
Amazon.com : Helect 2-Line Engineering Scientific Calculator, Suitable for School and Business (Blue) : Office Products
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Amazon.com : OSALO Scientific Calculator 417 Function 2 Line 10+2 Digits Written Display Solar Scientific Calculator (OS 991ES Plus) : Office Products
![I'm getting a syntax error with this calculation, the problem causing the issue is log2(2^-x), I cannot figure out the problem. : r/calculators I'm getting a syntax error with this calculation, the problem causing the issue is log2(2^-x), I cannot figure out the problem. : r/calculators](https://preview.redd.it/59n0kic3nh271.jpg?auto=webp&s=ab7a84235848031b5fc228a8075d7934920f52a2)