Question
Answer
$$2h-9hk+6h-6k=-9hk+8h-6k$$
Explanation
| $$ \begin{aligned}2h-9hk+6h-6k& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}-9hk+8h-6k\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{2h} -9hk+ \color{blue}{6h} -6k = -9hk+ \color{blue}{8h} -6k $$ |
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