Answer:
A
Explanation:
y² - 18y + 77
consider the factors of the constant term (+ 77) which sum to give the coefficient of the y- term (- 18)
the factors are - 11 and - 7 , since
- 11 × - 7 = + 77 and - 11 - 7 = - 18 , then
y² - 18y + 77 = (y - 11)(y - 7) ← in factored form