解方程2的2x+3次方减2的2x+1=384
问答/225℃/2024-05-02 13:55:52
优质解答:
2^(2x+3)-2^(2x+1)=384
2^(2x+1)*2^2-2^(2x+1)=384
2^(2x+1)*(4-1)=384
2^(2x+1)=384/3=128=2^7
2x+1=7
x=3
问答/225℃/2024-05-02 13:55:52
2^(2x+3)-2^(2x+1)=384
2^(2x+1)*2^2-2^(2x+1)=384
2^(2x+1)*(4-1)=384
2^(2x+1)=384/3=128=2^7
2x+1=7
x=3