Tap the blue circles to see an explanation.
$$ \begin{aligned}x^6x^3y^2-w^5x^5y^3+2x+5& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}x^9y^2-w^5x^5y^3+2x+5 \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}-w^5x^5y^3+x^9y^2+2x+5\end{aligned} $$ | |
① | $$ x^6 x^3 y^2 = x^{6 + 3} y^{2} = x^9 y^2 $$ |
② | Combine like terms: $$ x^9y^2-w^5x^5y^3+2x+5 = -w^5x^5y^3+x^9y^2+2x+5 $$ |