Solve using the foil method (first, outside, inside, last).
(m + 5)(m - 3)
Your steps using foil should look like:
- m * m
- m * -3
- 5 * m
- 5 * -3
After multiplying, rewrite your expression.
m² - 3m + 5m - 15
The last step to simplifying this expression is to combine like terms, which are -3m + 5m.
m² + 2m - 15