Question
Answer
$$\dfrac{22}{45r\cdot(80-32r\cdot3)}=\dfrac{22}{3600r-4320r^2}$$
Explanation
| $$ \begin{aligned}\frac{22}{45r\cdot(80-32r\cdot3)}& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}\frac{22}{3600r-4320r^2}\end{aligned} $$ | |
| ① | Multiply $ \color{blue}{45r} $ by $ \left( 80-96r\right) $ $$ \color{blue}{45r} \cdot \left( 80-96r\right) = 3600r-4320r^2 $$ |
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Simplify Rational Expressions