i need help with this one problem i am stuck on

Question

Tara correctly says that in the expression 7(x+4),"x+4" is used as both a sum and as a factor. Explain her reasoning.(Use complete sentences).

Answer 1

The result of addition is the sum, so x + 4 gives us a sum.

 

Because x + 4 is inside the parentheses, 7 is multiplied by x + 4, making both 7 and x + 4 factors.