若2的x次方+2的y-1次方-8=0,求4×2的x+1次方+2的y+4次方的值

2025-06-20 16:10:10
推荐回答(1个)
回答1:

2的x次方+2的y+1次方-8=0
2的x次方+2的y+1次方=8
所以
4×2的x+1次方+2的y+4次方
=2的x+3次方+2的y+4次方
=8×(2的x次方+2的y+1次方)
=8×8
=64

题目有点问题.