2x-3y=1,4的2x次方*8的2y次方分之3-1=?
问题描述：
2x-3y=1,4的2x次方*8的2y次方分之3-1=?
答
4的2x次方*8的2y次方分之3-1
变为:
2^4x*(3/2^6y)-1
=3*2^(4x-6y)-1
=3*4-1
=11