can someone explain how to solve just not answer:

IxI if x = 12 the I are a bar?

as always,

|x| = x if x >= 0
|x| = -x if x < 0

so, is 12 positive or negative?

im sorry the question is Write an integer for each expression:

[x} if x = -12

does the bar around the x have anything to do with the problem.

YES! It means "absolute value". Did you not read what I wrote? That's the definition of absolute value.

|10| = 10
|-3| = 3

|-12| = 12

To solve the expression IxI, where x is equal to 12 and the I's are represented as bars, you need to evaluate the absolute value of x, which is denoted by the bars around x.

The absolute value of a number is its distance from zero on a number line, always resulting in a positive value. In this case, since x=12, we take the absolute value of 12, which is equivalent to |12|.

To evaluate the absolute value of a number, you simply remove the bars and keep the number as is, if the number is positive. Therefore, |12| = 12.

So, the solution to the expression IxI, when x=12 and the I's are represented as bars, is 12.