I suppose that would be 14x2 - 7x3. Just take out the common factor, 7x2. Divide each term by this factor to find the other factor.
14x squared minus 7x to the 3rd power can be factored to 7x2(2-x).
(3x + 1)(x - 5)
3x^2 -14x +15 = (3x-5)(x-3)
7x2 - 14x = 7x(x - 2)
3x2 -14x -24 can be factored as (3x + 4)(x - 6).
14x2-7x2-16 7x2-16 (this can't be simplified any more)
14x2 - 39x - 35 = (7x + 5)(2x - 7)
The GCF is 2x2
7(x - 1)(x + 3)
(x - 16)(x + 2) x = 16 or -2
7x(3x3 - 2x2 + 5x + 1)
Yes because if x2-14x+49 then it is (x-7)(x-7) when factored