(5x - 6)(5x + 6)
x(x - 25)(x - 25)
well, i believe it goes like this (not certain) 25 is the only not prime number so... 3xcubed x squared -5 squared
x(x-1)
(x + 2)(x - 4)
(x + 2)(x - 9)
(x - 5)(x + 3)
(x + 1)(x - 8)
x(x - 7)
x(x - 2)
It is not clear what you mean by x^2 minus "factor x". Please add more information and resubmit.
There are no rational factors.