Question

x^2+22x+?
what would make this a perfect square trinomial

Answer 1

the "c" term in a perfect square trinomial is Half of the "b" squared
c = (b/2)^2

in this case, b = 22

Answer 2

so the ? is equal to 22?

Answer 3

no quite! :)

b=22

plug that into (b/2)^2 = (22/2)^2 = "?"

Answer 4

11^2??

Answer 5

almost there! :)
11^2 = 11*11 =

Answer 6

121

Answer 7

there you go! tah dahhhhh