Factor each trinomial. Identify the binomial factors
X² + 16x + 63
X² - 11x + 18
X² - 6x - 40
X² + 14x - 72
1. X² + 16x + 63 = (X + 7)(X + 9)
2. X² - 11x + 18 = (X - 2)(X - 9)
3. X² - 6x - 40 = (X - 10)(X + 4)
4. X² + 14x - 72 = (X + 18)(X - 4)