x^2(1 - x)(1 + x)
2(x - 7)(x - 1)
(x + 2)(x - 4)
x(x - 2)
It is impossible but if it were x squared plus 2x minus 15 the equation would be (x+5) (x-3) with x being equal to either -5 or 3. If the original problem was x squared minus 2x minus 15 the equation would be (x-5)(x+3) and x would be equal to either 5 or -3
I believe it is prime as you have written it. change the end to + 81 and it factors as (2x - 1)(x-9)(x+9)
x + 1
(x - 1)(x + 1)
x(x-1)
x = 1
(x + 1)(x - 8)
x = ? 42 = x squared minus x
-3
This expression factors as x -1 quantity squared.
1
1
1/x4