Question
Answer
$$9a(3x-39a)=-351a^2+27ax$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}9a(3x-39a)& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}27ax-351a^2 \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}-351a^2+27ax\end{aligned} $$ | |
| ① | Multiply $ \color{blue}{9a} $ by $ \left( 3x-39a\right) $ $$ \color{blue}{9a} \cdot \left( 3x-39a\right) = 27ax-351a^2 $$ |
| ② | Combine like terms: $$ -351a^2+27ax = -351a^2+27ax $$ |
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Simplify Rational Expressions