Answer
$$z(5z-3)-2z=5z^2-5z$$
Explanation
Tap the blue circles to see an explanation.
| $$ \begin{aligned}z(5z-3)-2z& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}5z^2-3z-2z \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}5z^2-5z\end{aligned} $$ | |
| ① | Multiply $ \color{blue}{z} $ by $ \left( 5z-3\right) $ $$ \color{blue}{z} \cdot \left( 5z-3\right) = 5z^2-3z $$ |
| ② | Combine like terms: $$ 5z^2 \color{blue}{-3z} \color{blue}{-2z} = 5z^2 \color{blue}{-5z} $$ |
This page was created using
Simplify polynomials calculator