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https://vle.mathswatch.co.uk/images/questions/question17876.png

 

https://vle.mathswatch.co.uk/images/questions/question16942.png

 

It's a homework I'm currently unable to do.

 Sep 20, 2019
 #1
avatar+104876 
+3

Factors of 20   are   1, 2, 4, 5, 10, 20

 

The cubes < 36   =   1, 8 and 27

 

It appears that three  numbers  are     4, 5  and 27

 

 

cool cool cool

 Sep 20, 2019
 #2
avatar+104876 
+2

( √ 5)^2  *  (√3)^2  =

 

(5^(1/2))^2  *  (3^(1/2))^2  = 

    

    5      *       3     =

 

           15

 

 

(∛ 9)^3   *  ( √30 )^2  =

 

(9^(1/3)^3  *  (30^(1/3)^3  =

 

     9       *         30  =

 

           270

 

 

cool cool cool

 Sep 20, 2019

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