SOLUTION: How do you determine if a polynomial is the difference of two squares? Thank you so much for your help~~

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Question 323683: How do you determine if a polynomial is the difference
of two squares?


Thank you so much for your help~~
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Just by looking.
You should have two terms : one with an even power of the variable, the other a constant term.
It would look like,
Z%5E2-A%5E2 but could also look like,
9u%5E2-3 or 7y%5E6-12
You just need to be able to reduce it to a form like,
Z%5E2-A%5E2
Just like in the examples,
9u%5E2-3
Z=3u
A=sqrt%283%29
.
.
.
7y%5E6-12
Z=sqrt%287%29y%5E3
A=sqrt%2812%29=2sqrt%283%29