Question
Answer
$$2x^2+3x-2x^2-4=3x-4$$
Explanation
| $$ \begin{aligned}2x^2+3x-2x^2-4& \xlongequal{ } \cancel{2x^2}+3x -\cancel{2x^2}-4 \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}3x-4\end{aligned} $$ | |
| ① | Combine like terms: $$ \, \color{blue}{ \cancel{2x^2}} \,+3x \, \color{blue}{ -\cancel{2x^2}} \,-4 = 3x-4 $$ |
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