In the expression 1(2 + 3), what property is being utilized?

In the expression 1(2 + 3), the use of the distributive property allows for the multiplication of a single term by a sum contained within parentheses. The distributive property states that when you multiply a number by a sum, you can distribute the multiplication over each addend. Therefore, 1(2 + 3) can be rewritten as 12 + 13. This property helps simplify expressions and is fundamental in algebra for dealing with parentheses and multiple terms.

Other properties like the associative property, which pertains to grouping in addition or multiplication, the commutative property, concerning the order of addition or multiplication, and the inverse property, which relates to a number and its opposite or reciprocal achieving a result of zero or one, do not apply in this case. The correct identification of the distributive property reflects a solid understanding of how multiplication interacts with addition in expressions.