$$ \begin{aligned}16-2x^3+4x-10& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}-2x^3+4x+6\end{aligned} $$ | |
① | Combine like terms: $$ \color{blue}{16} -2x^3+4x \color{blue}{-10} = -2x^3+4x+ \color{blue}{6} $$ |