1 27 4 x 9 2x 1 July 8, 2019 16 32 64 128 $ left ( frac 1 27 right 4 x = 9 2x 1 $ 8 27 x 1 =( 9 4 2x 1 1 1 x +4 9 x =27 1 1 х +4 9 х =27 1 4 x 27
