Question
Answer
$$2x(-9616x^3+119x)+16119x^4=-3113x^4+238x^2$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}2x(-9616x^3+119x)+16119x^4& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}-19232x^4+238x^2+16119x^4 \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}-3113x^4+238x^2\end{aligned} $$ | |
| ① | Multiply $ \color{blue}{2x} $ by $ \left( -9616x^3+119x\right) $ $$ \color{blue}{2x} \cdot \left( -9616x^3+119x\right) = -19232x^4+238x^2 $$ |
| ② | Combine like terms: $$ \color{blue}{-19232x^4} +238x^2+ \color{blue}{16119x^4} = \color{blue}{-3113x^4} +238x^2 $$ |
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