Which of the following is not a perfect square trinomial?
(Points : 1)
169 − 26y + y^2
81 + 18y + y^2
64 + 8y + y^2
25 + 10y + y^2

Question

Which of the following is not a perfect square trinomial?
(Points : 1)
       169 − 26y + y^2
       81 + 18y + y^2
       64 + 8y + y^2
       25 + 10y + y^2

anonymous · Answer

so which one is it

anonymous · Answer

Okay I just got a warning but I'm helping u by show you the steps. I don't know who issued me a warning so I'm sorry I can't help

mathmale · Answer

Let's talk in terms of how to recognize a perfect square trinomial.

1.  Write the terms of the given expression in descending order by power of x.
For example, 81 + 18x + x^2 can be re-written as x^2 + 18x + 81.

mathmale · Answer

Is x^2 a perfect square?
Is 81 a perfect square?

anonymous · Answer

yes

mathmale · Answer

The square root of x^2 is what?
The square root of 81 is what?