Question

Вычислить самым рациональным способом:)

Answer 1

∛(8,127³+30.8,127.1,873+1,873³=
=∛(8,127³+1,873³+30.8,127.1,873=
=∛((8,127+1,873)(8,127²-8,127.1,873+1,873²)+30.8,127.1,873)=
=∛(10.8,127²-10.8,127.1,873 +10.1,873²+30.8,127.1,873)=
=∛(10.8,127²+20.8,127.1,873+10.1,873²)=
=∛10.(8,127²+2.8,127.1,873+1,873²)=
=∛10.(8,127+1,873)²=∛10.10²=∛10³=10