5x 2 7x 5 0 July 8, 2019 16 32 64 128 7x 3x 5 )( 5x 2 )= 0 9x 5x 1 2 8x 7x 5 9x 0 9x 5x 1 2 8x 7x 5 9x 0 comprobacion 5 x 7 = 35