Răspuns :
19^31:19^10=19^21
(9^7)^7:(9^1)^47=
=9^49:9^47=
=9^2=81
ma=(19^21+81)/2
19^31:19^10 =19^21
(9^7) ^7 =9^49
(9^1) ^47= 9^47
9^49:9^47= 9^2
Ma=(19^21+9^2) :2
=19^21+81 pe 2
19^31:19^10=19^21
(9^7)^7:(9^1)^47=
=9^49:9^47=
=9^2=81
ma=(19^21+81)/2
19^31:19^10 =19^21
(9^7) ^7 =9^49
(9^1) ^47= 9^47
9^49:9^47= 9^2
Ma=(19^21+9^2) :2
=19^21+81 pe 2