Factor out -2: -2(x squared +11x-20). This is fully factored.
-((x + 8)(x - 1))
(5w + 1)(w + 1)
That doesn't factor neatly. Applying the quadratic formula, we find two imaginary solutions: 1 plus or minus i where i is the square root of negative one.
x squared minus 12 x plus 36 = (x - 6)(x - 6)
There is no rational factorisation.
There are no rational factors.
54.3 squared
(a - 2)(a^2 + 6)
(b-c)(a+b)-ac
(3y - 5)(y + 5)
(x + 3)(3x - 2)
(7a - 1)(6a + 1)