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Ex 5 urgent dau 5 stele

Ex 5 Urgent Dau 5 Stele class=

Răspuns :

(7^9)^4:7^34-7=

= 7^36:7^34-7

=7^2-7

=49-7

=42

(7^9)^4:7^34-7=
=7^36:7^34-7
=7^2-7
=49-7
=42