$$ \begin{aligned}-8 \cdot \frac{m^4}{2m-1}& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}-\frac{8m^4}{2m-1}\end{aligned} $$ | |
① | Step 1: Write $ 8 $ as a fraction by putting $ \color{red}{1} $ in the denominator. Step 2: Multiply numerators and denominators. Step 3: Simplify numerator and denominator. $$ \begin{aligned} 8 \cdot \frac{m^4}{2m-1} & \xlongequal{\text{Step 1}} \frac{8}{\color{red}{1}} \cdot \frac{m^4}{2m-1} \xlongequal{\text{Step 2}} \frac{ 8 \cdot m^4 }{ 1 \cdot \left( 2m-1 \right) } = \\[1ex] & \xlongequal{\text{Step 3}} \frac{ 8m^4 }{ 2m-1 } \end{aligned} $$ |