Question
Answer
$$3w^2+2w-7+w^2-2w-5=4w^2-12$$
Explanation
| $$ \begin{aligned}3w^2+2w-7+w^2-2w-5& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}4w^2-12\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{3w^2} + \, \color{red}{ \cancel{2w}} \, \color{orange}{-7} + \color{blue}{w^2} \, \color{red}{ -\cancel{2w}} \, \color{orange}{-5} = \color{blue}{4w^2} \color{orange}{-12} $$ |
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