Răspuns:
Explicație pas cu pas:
a) 8+5×[20+3(2+24)-15]-3=5+5(20+52-15)5=5+5×57=5(1+57)=5×58=290
b)[150+12×8-(28-10)]×10=(150+96-18)×10=2280
c)5+5×[5+2(5+25-6)]=5+5(5+2×24)=5+5(5+48)=5(1+48)=5×49=245
