Tap the blue circles to see an explanation.
| $$ \begin{aligned}(3a+4)(2a-3)& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}6a^2-9a+8a-12 \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}6a^2-a-12\end{aligned} $$ | |
| ① | Multiply each term of $ \left( \color{blue}{3a+4}\right) $ by each term in $ \left( 2a-3\right) $. $$ \left( \color{blue}{3a+4}\right) \cdot \left( 2a-3\right) = 6a^2-9a+8a-12 $$ |
| ② | Combine like terms: $$ 6a^2 \color{blue}{-9a} + \color{blue}{8a} -12 = 6a^2 \color{blue}{-a} -12 $$ |