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Help me, please

 

Exercise: Expand as indicated.

 

(3√xy)^3

 Feb 21, 2018
 #1
avatar+99586 
+1

 

(3 √xy )^3       Write in exponential form, first

 

( 3^1  * x^(1/2)  * y^1)^3   =

 

3^3  * x^(3/2) * y^3  =

 

27 * x√x * y^3

 

 

 

cool cool cool

 Feb 21, 2018
 #2
avatar+1405 
+1

Thanks Cphilllaugh

 Feb 21, 2018

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