1 câu trả lời
3+2^x-1=24-[4^2-(2^2-1)]
3+2^x-1=24-[16-(4-1)]
3+2^x-1=24-13
3+2^x-1=11
2^x-1=11-3
2^x-1=8
->2^x-1=2^3
-> x-1 = 3
x = 3+1
x=4
3+2^x-1=24-[4^2-(2^2-1)]
3+2^x-1=24-[16-(4-1)]
3+2^x-1=24-13
3+2^x-1=11
2^x-1=11-3
2^x-1=8
->2^x-1=2^3
-> x-1 = 3
x = 3+1
x=4