If the expression y2 - 16y + 64 is factored completely, which is one of its factors?

(y + 8)

(y - 8)

(y - 4)

(y + 4)

b) y - 8 is one of the factor of the given expression

Step-by-step explanation:

Explanation:-

Given expression y² - 16 y + 64

⇒ y² - 8 y - 8 y + 64

⇒ y (y - 8) - 8 (y - 8)

⇒ (y-8) (y-8)

Therefore (y - 8) is one of the factor