You can take 7x2 out of both of those, leaving 5x4 and 1.
14x2-7x2-16 7x2-16 (this can't be simplified any more)
That's not a trinomial, but it factors to x(x + 19)
The greatest common factor of 6 and 36 is 6. Since 6 is a factor of 36, it is automatically the GCF.
... what are the factor family of 6
(x - 3)(7x + 2)
(7x + 2)(x - 3)
(7x + 6)(x - 2)
7x2
(3x + 1)(x + 6)
84 14 x 6 7x2 x 3x2
7x2 + 68xy - 20y2
(7x2 + 9)(4x - 1)
x^2-19x+90 (x-9) (x-10)
You can take 7x2 out of both of those, leaving 5x4 and 1.
7(x2 + 7)
I suppose you mean, how do you factor it. 7x2 - 9x - 10 = (7x + 5)(x - 2).