(1)5^(2x+1)=125=5^3
2x+1=3
x=1
(x-2)^2009+x^2=(1-2)^2009+1=-1+1=0
(2)A=3^55,B=4^44,C=5^33
A=(3^5)^11=243^11,B=(4^4)^11=256^11,C=(5^3)^11=125^11
B>A>C
(3)2x+5y-3=0,2x+5y=3
4^x*32^y
=2^(2x)*(2^5)^y
=2^(2x)*(2)^(5y)
=2^(2x+5y)
=2^(3)
=8
(1)5^(2x+1)=125=5^3
2x+1=3
x=1
(x-2)^2009+x^2=(1-2)^2009+1=-1+1=0
(2)A=3^55,B=4^44,C=5^33
A=(3^5)^11=243^11,B=(4^4)^11=256^11,C=(5^3)^11=125^11
B>A>C
(3)2x+5y-3=0,2x+5y=3
4^x*32^y
=2^(2x)*(2^5)^y
=2^(2x)*(2)^(5y)
=2^(2x+5y)
=2^(3)
=8