Question

What is the product of any integer and -1

Answer 1

Product of any integer and -1 is negative/positive integer.

For example:

2 • -1 = -2, but

-2 • -1 = 2.

Answer 2

The negative counterpart

Explanation:

x * -1 = -x

For example, 3 * -1 = -3

Hope this helps.