Question

simplificando a expressao 3.(-1/2)^2+1/4:3.(-1/3)^2-3/2

Answer 1

= 3 . 1/4 + 1/4 . 1/3 . 1/9 - 3/2

= 3/4 + 1/12 . 1/9 - 3/2

= 3/4 + 1/ 108 - 3/2

= (81 + 1 - 162)/108

= 80/108

= 20/27