Question

A) √81:3 + { 12 +[2 +(30 -18) -4 ] +2²} =
Pffff eu preciso disso até quarta feira

Answer 1

$\sqrt{81} :3 + [12 +[2 +(30 -18) -4 ] +2^2]$

$9:3+[12+[2+12-4]+4]$

$3+[12+[14-4]+4]$

$3+[12+10+4]$

$3+[22+4]$

$3+26$

$29$