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a fost răspuns

9×{8+7×[6+5×(4+3×(2+1)]}

Răspuns :

Ioanamocanita
9×{8+7×[6+5×(4+3×(2+1)]}
=(2+1)=3
=9×{8+7×[6+5×(4+3×3)]}
=4+3×3=4+9=13
=9×[8+7×(6+5×13)]
=6+5×13=6+65=71
=9×(8+7×71)
=8+7×71=8+497=505
=9×505=4545
=4545

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