Answer
$$6-3xx^2-4=-3x^3+2$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}6-3xx^2-4& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}6-3x^3-4 \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}-3x^3+2\end{aligned} $$ | |
| ① | $$ 3 x x^2 = 3 x^{1 + 2} = 3 x^3 $$ |
| ② | Combine like terms: $$ \color{blue}{6} -3x^3 \color{blue}{-4} = -3x^3+ \color{blue}{2} $$ |
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