18 3 2 4x2 July 8, 2019 16 32 64 128 La expresion 18+2^3/4 x 2 18 3 4 x 22 1 2 29 1 2 x 18 3 4 shelf La expression 18+2^3/4 x 2 3 2x 2 )-( x 4 ) 18 18 2 3 4 x 2 18 รท 3 18 / 2 - 3 * 3 + 18 (2)x