EXPONENTIALS 1

simplify 3

              8^-2/3

Solution

=  3

    8^-2/3

=  3 x 1

           8^-2/3

=  3 x 8^2/3        [Since 1/a^-n = aⁿ]

=  3 x (8^1/3)²        [Since 8^1/3 = cube root of 8 = 2]

=  3 x (2)²        

=  3 x 4

= 12        

         

Hence   3        = 12

              8^-2/3

TRY THIS………………………………..

simplify   3

               125^-2/3