Ta có :
( - 8 )9 = ( - 23 )9 = ( - 2 )27
( - 32 )5 = ( - 25 )5 = ( - 2 )25
Vì ( - 2 )27 < ( - 2 )25
nên ( - 8 )9 < ( - 32 )5
\(\left(-8\right)^9=\left(-2^3\right)^9=-2^{27}\)
\(\left(-32\right)^5=\left(-2^5\right)^5=-2^{25}\)
Vì \(-2^{27}< -2^{25}\) nên \(-8^9< -32^5\)