13X squared + 7X + 12
(7x + 8)(7x - 9)
(7x - 10)(x + 1)
-3
x(x - 7)
You would factor 2x2 + 7x + 6 into (2x + 3) (x+2)
49x2 - 84x + 36 = (7x - 6)(7x - 6) or (7x - 6)2
It is: 12x2-7x-12 equals (4x+3)(3x-4) when factored
(x2 + 7x - 18) = (x + 9)(x - 2)
If you mean: x squared -7x +12 then it is (x-3)(x-4) when factored
14x2-7x2-16 7x2-16 (this can't be simplified any more)
-2