Answer
$$x^1+x^2+x^3+x^4+x^5=x^5+x^4+x^3+x^2+x$$
Explanation
| $$ \begin{aligned}x^1+x^2+x^3+x^4+x^5& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}x^5+x^4+x^3+x^2+x\end{aligned} $$ | |
| ① | Combine like terms: $$ x^5+x^4+x^3+x^2+x = x^5+x^4+x^3+x^2+x $$ |
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