3 Factorize: x² - 10x + 25 - 4y² A (x - 5 - 2y)(x - 5 + 2y) B (x + 5 - 2y)(x + 5 + 2y) C (x - 5 - 2y)² D (x - 5)² - 4y²
8 Factorize completely: x² - 6x + 9 - y² A (x - 3 - y)(x - 3 + y) B (x - 3 - y)² C (x + 3 - y)(x + 3 + y) D (x - 3)(x - 3) - y²