Реши пожалуйста логорифмы

25) (3^2)/(3^(log(3,18)))=9/18=1/2 26) 5^2*5^(log(5,3))=25*3=75 27) 6^(-2log(6,5)=5^-2=1/25 28) 10/(10^lg(2))=10/2=5 29) -1/2 30) 5.2 31) x^-2=1/4, x = 2 32) x=5 33) 4^2/(4^(log(4,0.25)))=16/0.25=64 34) 3^(2log(3,7))=49 35) 4^(2log(4,81)=81^2=6561 36) log(3/10, 10/3) = -1 37) (1/7)/((1/7)^(log(1/7,7)))=(1/7)/(7)=1/49 38) log(4, 4^3)=3 39) log(9,2)(1/2log(9,2))=1/(1/2)=2 40) x^3=27, x=3