Thursday, 3 August 2017

EXPONENTIALS 1


Simplify 60
              125-2/3

Solution

60
   125-2/3

= 60 x 1
         125-2/3

=  60 x 1252/3        [Since 1/a-n = an]

=  60 x (1251/3)2        [Since 1251/3 = cube root of 125 = 5]

=  60 x (5)2        

=  60 x 25       since (5)2 = 25

= 1500 answer      
          

TRY THIS…..  

Simplify 20

             216-2/3

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