A x 1 2 1 b 7 2x 6 49 July 8, 2019 16 32 64 128 A) (x - 1)(x + 7) 6) (a ^ 2 - 4b ^ 2)(b ^ 2 - 4a ^ 2) A) 2(x + 1 2) = 2 7 - x 6) 7 9 x- 5 18 x=-3 2 x x 2 − 1 = a x − 1 + b x + 1
