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