👤
Barbi111
a fost răspuns

9+9×{9+9×[9+9×(9+9×2+9÷9)]}

Răspuns :

Silviatibi
9+9x{9+9x[9+9x(9+9x2+9:9)]} 
 9+9x{9+9x[9+9x(9+18+1)]}=
 9+9x{9+9x[9+9x(27+1)]}=
  9+9x{9+9x[9+9x28]}=
  9+9x{9+9x[9+252]}= 
  9+9x{9+9x261}=
  9+9x{9+2.349}= 
  9+9x2358=
 9+21.222=
 21.231