x2+3x-5 = (x+4.192582404)(x-1.192582404) factored with the help of the quadratic equation formula
x3 + x2 + 4x + 4 = (x2 + 4)(x + 1)
x + 4
Factor x2 plus 12xp plus 36p2 is (x+6p)(x+6p).
You can't factor it
That does not factor neatly.
1
Not factorable
15 x 2 = 30
x2 + 5x - 120 can not be factored.
x2+10x-336
x2 - 13 + 30 = x2 + 17, which has no real factors.
x2 + 7x + 6 = (x + 6) (x + 1)