If 2 x 1 2 x 1 640 July 8, 2019 16 32 64 128 If 2 x 1 2 x 1 640 then the value of x is If x ≠ − 1 2 then 6 x 3 + 3 x 2 − 8 x − 4 2 x + 1 = If 2 3
