(x2 + 1)(x2 - 2)
It is: (x-y)4
(2x - 1)(2x + 3)
It is (A-1)(A+1) when factored
2x to the fourth power minus 162 equals -146
(2x - 1)(4x + 1)
It is: (x-y)4
x^2(1 - x)(1 + x)
3x squared minus 25x minus 28
(x^2 - 2)(x - 2)(x + 2)
There are no rational factors.
(2x - 1)(2x + 3)
(a + 3)(a - 3)
(5x - 2y)(5x + 2y)
(x + 1)(x - 8)
2x squared - 5x - 3 = (2x +1)(x -3)
Without that other number, all you've got is zero.
(x - y)(x + y)