Tap the blue circles to see an explanation.
| $$ \begin{aligned}(x^1+x^2+x^3+x^4+x^5+x^6)^1& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}x+x^2+x^3+x^4+x^5+x^6 \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}x^6+x^5+x^4+x^3+x^2+x\end{aligned} $$ | |
| ① | A polynomial raised to the power of one equals itself. |
| ② | Combine like terms: $$ x^6+x^5+x^4+x^3+x^2+x = x^6+x^5+x^4+x^3+x^2+x $$ |