The 8th power of 9 is the several power of 3

The 8th power of 9 is the several power of 3

8Th power of 9 of 16th power =3th square followed by 8th power

A SIMPLE METHOD OF 18TH POWER OF 3×8TH POWER OF (-1/9)

3^18×(-1/9)^8
=3^18×1/9^8
=3^18×1/3^16
=3^18÷3^16
=3^2
=9