$$ \begin{aligned}x^3-6^2+14x-8& \xlongequal{ }x^3-36+14x-8 \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}x^3+14x-44\end{aligned} $$ | |
① | Combine like terms: $$ x^3 \color{blue}{-36} +14x \color{blue}{-8} = x^3+14x \color{blue}{-44} $$ |