Question

Factor the perfect square trinomial completely:
16y^2+56y+49

Answer 1

Since you are given that this is a perfect square trinomial, what is:

square root of (16y^2) =
square root of (49) =

Answer 2

4y and 7

Answer 3

I guess I am just getting all of the ways to factor and procedures jumbled lol I had thought that B had to equal the sum of the factors of 49... :/

Answer 4

ok.... so your answer is \(\large (4y + 7)(4y + 7) = (4y + 7)^2 \)

Answer 5

B is the sum of 4*7 + 4*7 or
56 = 4*7 + 4*7