+0  
 
+2
160
2
avatar+1317 

Help Me, please

 

Radicals: Rationalize the denominator

 

√5/8y3

ManuelBautista2019  Feb 19, 2018
 #1
avatar+90968 
+1

I assume this is :

 

√ [5/8y^3]    =

 

√5  /  √ [ 8y^3 ]     

 

Multiply top/bottom  by    √ [ 8y^3 ] 

 

    √5 * √ [ 8y^3 ]                   √ [ 40y^3 ]             √40  * √y^3    

________________   =       ___________  =     _________   =  

√ [ 8y^3 ] * √ [ 8y^3 ]                  8y^3                     8y^3

 

 

√4 * √10 *  y √y               2y √ [ 10 y ]                   y √ [ 10 y ]

____________    =        ___________     =        __________   =

      8y^3                           8y^3                               4y^3

 

 

√ [ 10 y ]

_______

   4y^2

 

 

 

cool cool cool

CPhill  Feb 19, 2018
 #2
avatar+1317 
+1

Thank You!!

ManuelBautista2019  Feb 19, 2018

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