Question

Which expressions are perfect square trinomials? Select all that apply.
A) x^2 + 20x + 100
B) x^2 + 7x + 49
C) x^2 + 12x + 4
D) x^2 + 8x + 16

Answer 1

http://statisticslectures.com/images/trinomial11.gif
which one do you think?

Answer 2

b & D

Answer 3

You are half right :D

Answer 4

Oh so A, B, & D? :D

Answer 5

keep in mind that, the terms at the "edges" will be squared forms
the middle term is the same guys non-squared times 2