Answer:
2n³ - 3n² - 7n + 3
Step-by-step explanation:
Given
(n² - 3n + 1)(2n + 3)
Each term in the second factor is multiplied by each term in the first factor, that is
n²(2n + 3) - 3n(2n + 3) + 1(2n + 3) ← distribute the parenthesis
= 2n³ + 3n² - 6n² - 9n + 2n + 3 ← collect like terms
= 2n³ - 3n² - 7n + 3
