Question
Answer
$$5x^2+5x+4-2x^2x+2=-2x^3+5x^2+5x+6$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}5x^2+5x+4-2x^2x+2& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}5x^2+5x+4-2x^3+2 \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}-2x^3+5x^2+5x+6\end{aligned} $$ | |
| ① | $$ 2 x^2 x = 2 x^{2 + 1} = 2 x^3 $$ |
| ② | Combine like terms: $$ 5x^2+5x+ \color{blue}{4} -2x^3+ \color{blue}{2} = -2x^3+5x^2+5x+ \color{blue}{6} $$ |
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