Answer: 4p + 18q - 5m - 6 + 7m²
Explanation:
(4p + 2q) - (2m - 7q + 5) + (7m² - 3m + 9q - 1)
distribute the negative sign:
4p + 2q - 2m + 7q - 5 + 7m² - 3m + 9q - 1
group the like terms:
4p + (2q + 7q + 9q) + (-2m - 3m) + (-5 - 1) + 7m²
combine like terms:
4p + 18q - 5m - 6 + 7m²