Which expression shows a sum of three terms?
A. x3
B. 3 + x + 3
C. 3x
D. 3(x + 3)

And just wanted to ask how is everyone?

x + 3 + x

Step-by-step explanation:

Step-by-step explanation:

The sum of three terms means that three terms have been added.

3x is the answer; it does not show the terms being added.

3+x is the sum of two terms.

x³ is a product.

x+3+x shows 3 things being added, so it is the correct answer.

step-by-step explanation:

first, eliminate the parenthesis:

3

x

+

2

−

4

x

second, group like terms:

3

x

−

4

x

+

2

third, combine like terms:

(

3

−

4

)

x

+

2

→

−

1

x

+

2

→

−

x

+

2