Question
Answer
$$2x^2+7x-4x^2+7x+12=-2x^2+14x+12$$
Explanation
| $$ \begin{aligned}2x^2+7x-4x^2+7x+12& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}-2x^2+14x+12\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{2x^2} + \color{red}{7x} \color{blue}{-4x^2} + \color{red}{7x} +12 = \color{blue}{-2x^2} + \color{red}{14x} +12 $$ |
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Simplify Rational Expressions