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3•10la puterea4+5•10la puterea3+10la puterea2+7•10+2

Răspuns :

3×10 la puterea 4+5 la puterea 3+10 la puterea 2+7×10+2=
=30 la puterea 4+5 la puterea 3 +10 la puterea 2 +7×10+2=
=810.000+125+1.000+7×10+2=
=810.000+125+1000+70+2=
=810.125+1.000+70+2=
=811.125+70+2=
=811.195+2=
=811.197
Sper ca e bine