determine whether each expression represents a positive value or negative value

To determine whether an expression represents a positive or negative value, we need to consider the sign of the expression.

If the expression is greater than 0, it represents a positive value. If the expression is less than 0, it represents a negative value.

For example, let's consider the expression 5 - 3.

5 - 3 = 2, which is greater than 0. Therefore, this expression represents a positive value.

Another example is the expression -6 + 8.

-6 + 8 = 2, which is greater than 0. Therefore, this expression also represents a positive value.

In general, any expression that evaluates to a number greater than 0 represents a positive value, and any expression that evaluates to a number less than 0 represents a negative value.

To determine whether each expression represents a positive or negative value, you need to consider the following rules:

1. A positive number multiplied by a positive number will result in a positive value.
2. A negative number multiplied by a negative number will also result in a positive value.
3. A positive number multiplied by a negative number will yield a negative value.
4. A negative number multiplied by a positive number will also yield a negative value.

You can apply these rules to each expression to determine their sign.

If you have specific expressions, please provide them so that I can help you further.