the sum of one and the product of one and number x

Question

how would you wite this

Answer 1

Aubrey, there is a single number x that adds to itself x + x = 1 and multiplies, x*x=1, to equal one? Because this is how I see this being written to start.

Answer 2

Or, x + x = x^2

Answer 3

A expression doesn't have an equal sign. -_-