\(8^x+2^{3x+1}=24\)
\(\left(2^3\right)^x+2^{3x}.2=24\)
\(2^{3x}+2^{3x}.2=24\)
\(2^{3x}.\left(1+2\right)=24\)
\(2^{3x}.3=24\)
\(2^{3x}=24:3\)
\(2^{3x}=8\)
=> 23x = 23
=>3x = 3
x = 3 : 3
x = 1
đúng ko
8x + 23x+1 = 24
=> 23x + 23x.2 = 24
=> 23x.( 1+2) =24
=> 23x.3 = 24
=> 23x = 24 : 3 =8
=> x=1