>>143
そこまでやるならx+y+zの値も出して上げれば良いのに
https://www.wolframalpha.com/input/?i=x%2By%2Bz+where+x%5E2%2Bxy%2By%5E2%3D16%2C+y%5E2%2Byz%2Bz%5E2%3D25%2C+z%5E2%2Bzx%2Bx%5E2%3D36&;lang=ja