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Ajutor va rog b)(7 ^2-3^2):2^2+7^2-1^2019+0^2020

Răspuns :

b)(7 ^2-3^2):2^2+7^2-1^2019+0^2020 =
=
(49-9):4+49-1+0=
=40:4+48=
=10+48=58