Question

Check my answer!
What number should be added to the expression x^2 + 2x to change it into a perfect square trinomial?

A. 1
B. 2
C. 3
D. 4
My answer: A. 1

Answer 1

okay well u see, that you will need a 2x and x^2 no matter what so
(X+1)^2 will give you that, now u need to see the constant part
(x+1)*(x+1) = x^2+2x+1

Answer 2

Okay, so my answer is correct?

Answer 3

@dan815 ^

Answer 4

yes it is =_=

Answer 5

dummy <_<

Answer 6

jk!

Answer 7

:(

Answer 8

im soorry i was just kiddin!!

Answer 9

It's okay. :(

Answer 10

Thanks anyways.