7,1⁸÷7,1⁷+7,1×[7,1-0,7×(7,9-1,7)]=


Răspuns :

7,1⁸÷7,1⁷+7,1×[7,1-0,7×(7,9-1,7)]=

7,1¹+7,1×(7,1-0,7×6,2)=

14,2×(7,1-4,34)=

14,2×2,76= 39,192