Expression 4: left parenthesis, "x" minus 2 , right parenthesis squared plus left parenthesis, "y" plus 2 , right parenthesis squared plus left parenthesis, "z" plus 2 , right parenthesis squared equals 4x−22+y+22+z+22=4
4
Expression 5: left parenthesis, "x" plus 2 , right parenthesis squared plus left parenthesis, "y" minus 2 , right parenthesis squared plus left parenthesis, "z" minus 2 , right parenthesis squared equals 4x+22+y−22+z−22=4
5
Expression 6: left parenthesis, "x" plus 2 , right parenthesis squared plus left parenthesis, "y" minus 2 , right parenthesis squared plus left parenthesis, "z" plus 2 , right parenthesis squared equals 4x+22+y−22+z+22=4
6
Expression 7: left parenthesis, "x" plus 2 , right parenthesis squared plus left parenthesis, "y" plus 2 , right parenthesis squared plus left parenthesis, "z" minus 2 , right parenthesis squared equals 4x+22+y+22+z−22=4
7
Expression 8: left parenthesis, "x" plus 2 , right parenthesis squared plus left parenthesis, "y" plus 2 , right parenthesis squared plus left parenthesis, "z" plus 2 , right parenthesis squared equals 4x+22+y+22+z+22=4
