2 2x 1 2 50 July 8, 2019 16 32 64 128 12x 2 2x 1 13x 2 2x 50 2 2x 1 mũ 2 50 2x 2 50 x 2 1 solve by factoring 4 2 5 2 2x 1 3 4 50 ) 2 x 2 5
