Answer:
The answer is [tex]6a^2[/tex].
Step-by-step explanation:
Solve:
[tex](-2a)(-3a)[/tex]
Multiply [tex]a[/tex] and [tex]a[/tex] :
[tex](-2a)(-3a)[/tex]
[tex]-2a^2(-3)[/tex]
Multiply [tex]-2[/tex] and [tex]-3[/tex] :
[tex]-2a^2(-3)[/tex]
[tex]6a^2[/tex]
So, the final answer is [tex]6a^2[/tex].