Answer:
The correct option is 2.
Step-by-step explanation:
The given expression is
[tex]7(x+3)[/tex]
Distributive property: If a,b and c are three real values, then
[tex]a(b+c)=ab+ac[/tex]
In the given expression a=7, b=x and c=3.
Using distributive property, the given expression can be written as
[tex]7(x+3)=7(x)+7(3)[/tex]
[tex]7(x+3)=7x+21[/tex]
The simplified form of given expression is 7x+21. Therefore the correct option is 2.
