Which expressions are negative?
-n + (-m)
-m + n
n + (-1)
m + (-n)
n + (-2)
m + n
The expressions "-n + (-m)" and "m + (-n)" are negative.
To determine which expressions are negative, we need to evaluate them.
1. -n + (-m): This expression is negative because the negative sign is applied to both variables.
2. -m + n: This expression can be either negative or positive depending on the values of m and n.
3. n + (-1): This expression can be either negative or positive depending on the value of n.
4. m + (-n): This expression can be either negative or positive depending on the values of m and n.
5. n + (-2): This expression can be either negative or positive depending on the value of n.
6. m + n: This expression can be either negative or positive depending on the values of m and n.
Therefore, the expressions that are always negative are:
- -n + (-m)
- n + (-2)