Răspuns :
10+[68:4-3(2⁵-3³)]*9=
10+[17-3(32-27)]*9=
10+(17-3x5)*9=
10+(17-15)*9=
10+2*9=
10+18=28
10+[17-3(32-27)]*9=
10+(17-3x5)*9=
10+(17-15)*9=
10+2*9=
10+18=28