Question
Answer
$$8+6x^4-5x-(6+3x^4)=3x^4-5x+2$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}8+6x^4-5x-(6+3x^4)& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}8+6x^4-5x-6-3x^4 \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}3x^4-5x+2\end{aligned} $$ | |
| ① | Remove the parentheses by changing the sign of each term within them. $$ - \left( 6+3x^4 \right) = -6-3x^4 $$ |
| ② | Combine like terms: $$ \color{blue}{8} + \color{red}{6x^4} -5x \color{blue}{-6} \color{red}{-3x^4} = \color{red}{3x^4} -5x+ \color{blue}{2} $$ |
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