6x2-17x+7 = (2x-1)(3x-7) when factored
That can be factored into (7d + 1)(d + 7)
9x2+2x-7 = (9x-7)(x+1) when factored
This is not factor-able.
w2+18w+77 = (w+7)(w+11) when factored
30a2+89a+63 = (5a+9)(6a+7) when factored
b^(2) + 8x + 7 Does NOT factor . Reason; you have two unknowns, viz. 'b' & 'x'. However, if you means b^(2) + 8b + 7 . Herewe have one unknown viz. 'b'. This factors to ( b + 7)(b + 1)
6t2+17t+7 = (3t+7)(2t+1) when factored
(x + 7)(x + 5)
It is: (x+3)(x+4) when factored
It can be simplified to: 3a^2 +10a+7 or factored as (3a+7)(a+1)
It is (x+6)(x+7) when factored
7r2+48r-7 = (7x-1)(x+7) when factored