Question
Answer
$$39x^3+18x-1+5x^4-x^2=5x^4+39x^3-x^2+18x-1$$
Explanation
| $$ \begin{aligned}39x^3+18x-1+5x^4-x^2& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}5x^4+39x^3-x^2+18x-1\end{aligned} $$ | |
| ① | Combine like terms: $$ 5x^4+39x^3-x^2+18x-1 = 5x^4+39x^3-x^2+18x-1 $$ |
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