102 +9x +4 = 9x + 106, which is in its simplest form.
You don't need to factor that; you can add them together, since they have the same variable.However, assuming you might mean 81x squared + 9x, you can take out the common factor, which is 9x.
10 + 9x
3x+21x+9x=33x. Break it apart. The factor of x is x and the factors of 33 are 3 and 11. Therefore, the factors of 3x+21x+9x are 3, 11, and x.
(2x + 1)(x + 4)
9x2 + 8x - 1 = (9x - 1)(x + 1)
x^2-9x+18=(x-6)(x-3)
3(x2 + 3x + 1)
3(x + 1)(x + 2)
(x+1)(x+8)
(x+7)(x+2)
9x2 + 9x - 10 =(3x - 2)(3x + 5)