[tex]\huge\text{Hey there!}[/tex]
[tex]\mathsf{4(2a)+7(-4b)+(3\times c \times5)}\\\mathsf{= 4(2a)+7(-4b)+3(c)(5)}\\\mathsf{= 8a - 28b + 3c(5)}\\\mathsf{= 8a - 28b + 15c}\\\\\huge\textbf{Thus, your answer is: \boxed{\mathsf{8a - 28b + 15c}}}\huge\checkmark[/tex]
[tex]\huge\text{Good luck on your assignment \& enjoy your day!}[/tex]
~[tex]\frak{Amphitritr1040:)}[/tex]
