question#1)...log32{log9[log2(3x+5)]}=-1/5
question#2)...3(log27x0^2-5(log27x)-2=0
question#3)...7(243)^2x-1+53=137834
question#4)...(8)^3x+1*(1/128)^5-x/(1/3square root262144)^