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

Expand:

(w + x((2t)/T) + y((2t)/T)^2 + z((2t)/T)^3)^2

I need to expand this expression and have completly forgetten how to go about doing this. Any help would be appreciated. thanks.

2. Relevant equations

3. The attempt at a solution

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# Expansion Question

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