Answer :

AL2006
No.  It's the difference of two squares, and so can be easily factored:

x² - 36 = (x + 6) (x - 6)

Multiply those out and you'll see.
Lilith
[tex]x^2 - 36=(x-6)(x+6)\\\\\\a^2-b^2 = (a-b)(a+b)[/tex]