Answer:
The answer is (3y+1) (y+7)
The correct choice is option B. (3y + 1) (y + 7)
Step-by-step explanation:
3y^2 + 22y + 7
⇒ 3y^2 + y + 21y + 7
⇒ y (3y+1) + 7 (3y + 1)
⇒ (3y + 1) (y + 7) = 0 ------> this is your answer
⇒ (3y + 1) = 0 or (y + 7) = 0
⇒ y = -13 or y = -7
