Question
Answer
$$x^2+2x+3x^2+4x-2x^2+x=2x^2+7x$$
Explanation
| $$ \begin{aligned}x^2+2x+3x^2+4x-2x^2+x& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}2x^2+7x\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{x^2} + \color{red}{2x} + \color{green}{3x^2} + \color{orange}{4x} \color{green}{-2x^2} + \color{orange}{x} = \color{green}{2x^2} + \color{orange}{7x} $$ |
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Simplify Rational Expressions