(25^2-log(osn 5)75)+(7^-log(osn 7) 3 )

Question

(25^2-log(osn 5)75)+(7^-log(osn 7) 3 )

Answer 1

25^2-log(osn 5)75)+(7^-log(osn 7) 3 )=625-log(осн 3)3-2+1/3=622+1/3