Question
Answer
$$12^2-60x+75=-60x+219$$
Explanation
| $$ \begin{aligned}12^2-60x+75& \xlongequal{ }144-60x+75 \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}-60x+219\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{144} -60x+ \color{blue}{75} = -60x+ \color{blue}{219} $$ |
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