Answer
$$3r^4(5r^2-r+4)=15r^6-3r^5+12r^4$$
Explanation
| $$ \begin{aligned}3r^4(5r^2-r+4)& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}15r^6-3r^5+12r^4\end{aligned} $$ | |
| ① | Multiply $ \color{blue}{3r^4} $ by $ \left( 5r^2-r+4\right) $ $$ \color{blue}{3r^4} \cdot \left( 5r^2-r+4\right) = 15r^6-3r^5+12r^4 $$ |
This page was created using
Simplify polynomials calculator