Answer
$$4x^2-94x^2+12x+9=-90x^2+12x+9$$
Explanation
| $$ \begin{aligned}4x^2-94x^2+12x+9& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}-90x^2+12x+9\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{4x^2} \color{blue}{-94x^2} +12x+9 = \color{blue}{-90x^2} +12x+9 $$ |
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Simplify Rational Expressions