1) (x+6)² = x² + 12x + 362) (3a-1)² = 9a² - 6a + 13) (3y-2)(3y+2) = 9y² - 44) (4a+3k)(4a-3k) = 16a² - 9k²
(b-8)² - (64-6b) = b² - 16b + 64 - 64 + 6b = b² - 10b
1) 25-y² = (5+y)(5-y)2) a²-6ab+9b = (a-3b)(a-3b)
1) (x+6)² = x² + 12x + 36
2) (3a-1)² = 9a² - 6a + 1
3) (3y-2)(3y+2) = 9y² - 4
4) (4a+3k)(4a-3k) = 16a² - 9k²
(b-8)² - (64-6b) = b² - 16b + 64 - 64 + 6b = b² - 10b
1) 25-y² = (5+y)(5-y)
2) a²-6ab+9b = (a-3b)(a-3b)