1、
4^x×32^y
=2^2x×2^5y
=2^(2x+5y)
=2^3
=8
2、
2^x×16^y
=2^x×2^4y
=2^(x+4y)
=2^0
=0
(3a+3b)^3
=[3(a+b)]^3
=(3t)^3
=27t^3
1.若2x+5y=3,则4的x次方×32的y次方=___?
1、
4^x×32^y
=2^2x×2^5y
=2^(2x+5y)
=2^3
=8
2、
2^x×16^y
=2^x×2^4y
=2^(x+4y)
=2^0
=0
(3a+3b)^3
=[3(a+b)]^3
=(3t)^3
=27t^3