Question
Answer
$$5x^2+3-(5-5x^2)=10x^2-2$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}5x^2+3-(5-5x^2)& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}5x^2+3-5+5x^2 \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}10x^2-2\end{aligned} $$ | |
| ① | Remove the parentheses by changing the sign of each term within them. $$ - \left( 5-5x^2 \right) = -5+5x^2 $$ |
| ② | Combine like terms: $$ \color{blue}{5x^2} + \color{red}{3} \color{red}{-5} + \color{blue}{5x^2} = \color{blue}{10x^2} \color{red}{-2} $$ |
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