1

Which of the following are perfect square trinomials?

 
1) y2 – 4y + 4
2) 4y2 + 16y + 8
3) 16y2 – 48y + 36

    • 1) and 2) only
    • 1) and 3) only
    • 2) and 3) only
    • 1), 2) and 3)