What about this one?
(9^7)^3/14
It's either 7.8156421e+18
or if you mean 3/14 to be a fraction, then it's 27
(9^7)^(3/14) multiply the exponents
(9)^ (21/14) =
(9) ^ (3/2) =
[ 9^(1/2)]^3 =
[3]^3 =
27
