Question

find the value of 4root(81)power of -2

Answer 1

4√81^-2
(4√9*9)^-2
(4*9)^-2
we can wrote 4 as 2^2
and 9 as 3^2
therefore,
(2^2*3^2)^-2
(2*3)^2*-2
6^-4
1/6^4

or

1/1296

Answer 2

(4√81)power -2
=( 4*9 ) power-2
= 36 power -2
= 1296 power -1
OR
1/1296

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