( 81^(1/4-1/2log9(4)) + 25^log125(8) ) * 49^log7(2)

Question

( 81^(1/4-1/2log9(4)) + 25^log125(8) ) * 49^log7(2)

Answer 1

(9^(2*(-1/4)log9(4)+5^(2)log5^3(2^3))*7^(2)log7(2)=
(9^log9(0.5)+5^log5(2^2))*7^log7*(2^2)=
(0.5+4)*4=18