SOLUTION: Is the following trinomial a perfect square? x2 – 2x – 1

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Question 49476: Is the following trinomial a perfect square?
x2 – 2x – 1
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
No. Because the middle term is not twice the product of the square
roots of the 1st and the 3rd term.
Cheers,
stan H.