It is (x+6)(x-4) when factored
x3 + 8 = x3 + 23 = (x + 2)(x2 + 2x + 22) = (x + 2)(x2 + 2x + 4)
x + 4
6x5(x2 - 6x + 3)
x4 + 7x2 - 60 = x4 + 12x2 - 5x2 - 60 = x2(x2 + 12) - 5(x2 +12) = (x2 - 5)(x2 +12)
x2 + 13x + 36 = (x + 9)(x + 4)
x2 + 6x + 5 can be factored into (x+1) (x+5)
(x+3)(x+3)
6x5(x2 - 6x + 3)
It is (x+6)(x-4) when factored
x3 + 8 = x3 + 23 = (x + 2)(x2 + 2x + 22) = (x + 2)(x2 + 2x + 4)
x3 + x2 + 4x + 4 = (x2 + 4)(x + 1)
x + 4
x2(x3 + 1) is the best you can do there.
Factor x2 plus 12xp plus 36p2 is (x+6p)(x+6p).
6x5(x2 - 6x + 3)
You can't factor it