va rog sa ma ajutati
Repedee
Ex: 7b, 8d, 9b
![Va Rog Sa Ma AjutatiRepedeeEx 7b 8d 9b class=](https://ro-static.z-dn.net/files/d30/f113f605f0ad004620627244e54276d0.jpg)
Răspuns:
7b) 7+7×[7+3(5+15-15)]=
=7+7×(7+3×5)=
=7+7×(7+15)=
=7+7×22=
=7+154=161
8d) [(1252+398)÷25+17]×1095-49
=(1650÷25+17)×1095-49=
=(66+17)×1095-49=
=83×1095-49=
=90885-49=90836