Х'3-у'3-2у'2+х'2-3у-1-2ху
х'3=71,8×71,8×71,8= 370146.232
у'3=70,8×70,8×70,8= 354894.912
2у'2=2×(70,8×70,8)= 10025.28
х'2=71,8×71,8= 5155.24
3у=3×70,8= 212,4
...
2ху=2×71,8×70,8= 10166.88
370146.232 - 354894.912 - 10025.28 + 5155.24 - 1 - 10166.88 =
=213.4