(20,4:6-3)^2+4,057=
(3,4-3)^2+4,057=
(0,4)^2+4,057=
0,160+4,057=4,217
(20,4:6 - 3)² + 4,057 =
= (7,4 - 3)² + 4,057
= 4,4² + 4,057
= 19,36 + 4,057
= 23,417
