已知3X+5Y=4,则8的X次方*32的Y次方=_____.
问题描述:
已知3X+5Y=4,则8的X次方*32的Y次方=_____.
答
8的X次方*32的Y次方
=8^x*32^y
=(2^3)^x*(2^5)^y
=2^3x*2^5y
=2^(3x+5y)
=2^4
=16