[tex]\huge\text{Hey there!}[/tex]
[tex]\mathsf{3ab - 2bc}[/tex]
[tex]\mathsf{= 3(-4)(6) - 2(6)(-9)}[/tex]
[tex]\mathsf{= -12(6) -12(-9)}[/tex]
[tex]\mathsf{= -72 - (-108)}[/tex]
[tex]\mathsf{= -72 + 108}[/tex]
[tex]\mathsf{= 36}[/tex]
[tex]\huge\textbf{Therefore, your answer should be:}}[/tex]
[tex]\huge\boxed{\mathsf{36}}\huge\checkmark[/tex]
[tex]\huge\text{Good luck on your assignment \& enjoy your day!}[/tex]
~[tex]\frak{Amphitrite1040:)}[/tex]