105をA、107をBって置いたら簡単です！
107^-2×105×107+105^
=B^-2AB+A^
=(B-A)^
=(107-105)^
=2^
=4
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105をA、107をBって置いたら簡単です！
107^-2×105×107+105^
=B^-2AB+A^
=(B-A)^
=(107-105)^
=2^
=4
Users viewing this question
are also looking at these questions 😉
ありがとうございます✨！