Answer:
![6a^(3)](https://img.qammunity.org/2021/formulas/mathematics/college/wh69mmeif6vmgas5i5hduz5xxclftql03a.png)
Step-by-step explanation:This is a very simple question.
We all know that the equation or formula for area is...
A= L*W
So multiply...
=
![6a^(3)](https://img.qammunity.org/2021/formulas/mathematics/college/wh69mmeif6vmgas5i5hduz5xxclftql03a.png)
Since 3a has an exponent power of 1 and you add the exponent power when multiplying...
The result would be...
.
Hope this helps:)