Ta có
\(64^8=\left(2^6\right)^8=2^{48}\)
\(16^{12}=\left(2^4\right)^{12}=2^{48}\)
\(\Rightarrow64^8=16^{12}\)
Ta có:648=(43)8=424
1612=(42)12=424
Vì 4=4 nên 424=424
hay 648=1612
Vậy 648=1612
Ta có:
648=(26)8=248
1612=(24)12=248
Vì 248=248
=>648=1612
hok tốt