Question
Answer
$$-13x^3-9x+27x^3=14x^3-9x$$
Explanation
| $$ \begin{aligned}-13x^3-9x+27x^3& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}14x^3-9x\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{-13x^3} -9x+ \color{blue}{27x^3} = \color{blue}{14x^3} -9x $$ |
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