<PRE><B>Question 46907</B>
(3 x~3 y~2 z~4)~4=81 x~12 y~8 z~16

3~4=3*3*3*3=81

X~3*X~3*X~3*X~3=X~12

Y~2*Y~2*Y~2*Y~2=Y~8

Z~4*Z~4*Z~4*Z~4=Z~16

THUS WE HAVE 81 X~12 Y~8 Z~16

HOPE THIS HELPS.</PRE>