Question
Answer
$$3x^6+2x^3-(x^5-5x^3)=3x^6-x^5+7x^3$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}3x^6+2x^3-(x^5-5x^3)& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}3x^6+2x^3-x^5+5x^3 \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}3x^6-x^5+7x^3\end{aligned} $$ | |
| ① | Remove the parentheses by changing the sign of each term within them. $$ - \left( x^5-5x^3 \right) = -x^5+5x^3 $$ |
| ② | Combine like terms: $$ 3x^6+ \color{blue}{2x^3} -x^5+ \color{blue}{5x^3} = 3x^6-x^5+ \color{blue}{7x^3} $$ |
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