Question
Answer
$$-4x^4+6x^2+3-(5x^2-3)=-4x^4+x^2+6$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}-4x^4+6x^2+3-(5x^2-3)& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}-4x^4+6x^2+3-5x^2+3 \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}-4x^4+x^2+6\end{aligned} $$ | |
| ① | Remove the parentheses by changing the sign of each term within them. $$ - \left( 5x^2-3 \right) = -5x^2+3 $$ |
| ② | Combine like terms: $$ -4x^4+ \color{blue}{6x^2} + \color{red}{3} \color{blue}{-5x^2} + \color{red}{3} = -4x^4+ \color{blue}{x^2} + \color{red}{6} $$ |
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