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(9^70+9^72):9^69= Va rog urgent!

Răspuns :

(9⁷⁰+9⁷²):9⁶⁹=

=9⁷⁰ˣ(9+9²):9⁶⁹=

=9ˣ(9+9²)=

=9ˣ(9+81)=

=9ˣ90=810