2x-5y-4=0 求4的x方÷32的y方
问题描述：
2x-5y-4=0 求4的x方÷32的y方
答
2x-5y-4=0
2x-5y=4
4^x÷32^y
=(2^2)^x÷(2^5)^y
=2^2x÷2^5y
=2^(2x-5y)
=2^4
=16