(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

When you have something like

and you wanna use the pythagorean's theorem identity but lets say i do it with the 3rd term in the parenthesis, then would this be valid

and what about this is this also valid?

2. Relevant equations

N/A

3. The attempt at a solution

N/A

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# Homework Help: Quick simple indentity explanation needed

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