Question
Answer
$$3x^4+5x^3+4x^3-9x+8x^4=11x^4+9x^3-9x$$
Explanation
| $$ \begin{aligned}3x^4+5x^3+4x^3-9x+8x^4& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}11x^4+9x^3-9x\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{3x^4} + \color{red}{5x^3} + \color{red}{4x^3} -9x+ \color{blue}{8x^4} = \color{blue}{11x^4} + \color{red}{9x^3} -9x $$ |
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