Question

Write an algebraic expression that illustrates the multiplicative identity

Answer 1

1 * x = x
x * 1 = x

are 2 examples

Answer 2

The multiplicative Identity says that anything times one is itself. Here's a couple equations to show this:

15 x 1 = 15
16 x 1 = 16
132213 x 1 = 132213

Algebraic: y * 1 = y

It works for every number