已知2x+3y-2=0则4^x乘8^y=多少?
问题描述:
已知2x+3y-2=0则4^x乘8^y=多少?
答
2x+3y=2
4^x*8^y
=2^2x*2^3y
=2^(2x+3y)
=2^2
=4