calculați (7^14•5)^2:7^26

Răspuns :

(7^14•5)^2:7^26=

=7^(14×2) ×5^2 :7^26=

=7^28 × 25 :7^26 =

=7^(28-26) ×25=

=7^2 ×25=

=49×25=

=1225