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