0 Comments
Answer:
(x² - 2x - 3)² =
(x² - 2x - 3)(x² - 2x - 3) =
x⁴ - 2x³ - 3x² - 2x³ + 4x² + 6x - 3x² + 6x + 9 = x⁴ - 4x³ - 2x² + 6x + 9