Answer:
x² - 3x + 2
Step-by-step explanation:
Given
(x - 2)(x - 1)
Each term in the second factor is multiplied by each term in the first factor, that is
x(x - 1) - 2(x - 1) ← distribute both parenthesis
= x² - x - 2x + 2 ← collect like terms
= x² - 3x + 2