Respuesta :
Answer: [tex]8a-28 b+15c[/tex]
Step-by-step explanation:
The given expression : [tex]4(2a) + 7(-4b) + (3 \times c \times 5).[/tex]
To write the above expression in standard form , we will simplify each term as
[tex]4(2a)= 4\times2 a = 8a[/tex] (1)
[tex]7(-4b)=7\times-4b= -28 b[/tex] (2)
[tex](3 \times c \times 5)= 3\times5\times c= 15c[/tex] [using commutative property] (3)
Using (1) , (2) and (3) , we get
The standard form of the given expression :
[tex]8a-28 b+15c[/tex]