Question

Evaluate the expression for m = –5 and n = 5. Simplify your answer.

m + n
mn + n
=

Answer 1

First, we'll evaluate the expressions by substituting the values of \( m \) and \( n \). Given \( m = -5 \) and \( n = 5 \):

1. For the expression \( m + n \):
\[
m + n = -5 + 5 = 0
\]

2. For the expression \( mn + n \):
\[
mn = m \cdot n = -5 \cdot 5 = -25
\]
Now substituting this into \( mn + n \):
\[
mn + n = -25 + 5 = -20
\]

Now, combining both results, we have:
- \( m + n = 0 \)
- \( mn + n = -20 \)

Thus, the results are:
\[
m + n = 0 \quad \text{and} \quad mn + n = -20
\]