1 2x 7 4x July 8, 2019 16 32 64 128 1 2x 7 4x 21 1 2x 7 1 4x 8 1 2x 7 3 4x 1 2x 7 2 1 4x 2 4x 1 2x 7 answer 2x 1 3 4x 7 5 7 1 2x 3 4x 2 3x 1 4x 5 2x 7 3x 1 )( 2x 2 4x 7 1 7 4 2x )=- 9 4x 1 2x 13 3 4x 7 2x 1 4x 7 resultado 1 2x 7 3 4x 15 2x 1 4x 7 como resolver 2x 1 4x 7 resposta