Question
Answer
$$5x^5-7x^2-(3x^5-8x^2)=2x^5+x^2$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}5x^5-7x^2-(3x^5-8x^2)& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}5x^5-7x^2-3x^5+8x^2 \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}2x^5+x^2\end{aligned} $$ | |
| ① | Remove the parentheses by changing the sign of each term within them. $$ - \left( 3x^5-8x^2 \right) = -3x^5+8x^2 $$ |
| ② | Combine like terms: $$ \color{blue}{5x^5} \color{red}{-7x^2} \color{blue}{-3x^5} + \color{red}{8x^2} = \color{blue}{2x^5} + \color{red}{x^2} $$ |
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