Răspuns :
=3+2{5+4[7(48+9)+10]}
=3+2{5+4[7*57+10]
=3+2{5+4[399+10]}
=3+2{5+4*409}
=3+2{5+1636}
=3+2*1641
=3+3282=3285
=3+2{5+4[7*57+10]
=3+2{5+4[399+10]}
=3+2{5+4*409}
=3+2{5+1636}
=3+2*1641
=3+3282=3285
3+2*{5+4*[7*(48+9)+10]}=
=3+2*[5+4*(7*57+10)]=
=3+2*(5+4*(399+10)=
=3+2*(5+4*409)=
=3+2*(5+1636)=
=3+2*1641=
=3+3282=
=3285
=3+2*[5+4*(7*57+10)]=
=3+2*(5+4*(399+10)=
=3+2*(5+4*409)=
=3+2*(5+1636)=
=3+2*1641=
=3+3282=
=3285