2020+2020x3+2020x6+2020
putem folosi metoda factorului comun :
2020(1+3+6+1)=2020 =2020×11=22.220
cu draaag:D
Explicație pas cu pas:
2020+2020×3+2020×6+2020=
=2020+6060+12120+2020=
=8080+14140=
=22220
@iamstefan62
