+0  
 
0
28
2
avatar+257 

Simplify sqrt{28x} * sqrt{15x} * sqrt{21x}. Express your answer in simplest radical form in terms of x.

 

 

Thanks my dudes!

 
Sort: 

2+0 Answers

 #1
avatar+79741 
+2

√ [28x] * √[ 15x ] *   √[21x ]   =

 

√[ 4 * 7 * x ] * √ [3 * 5 * x ]  * √ [3 * 7 * x ]  =

 

√4 * √7 * √x *√ 3 *√5 *√x *√3 * √7 *√x  =

 

2 * √x^3 * √3^2 * √7^2 *√5  =

 

2 * x √x *  3 * 7 *√5  =

 

42x √ [ 5x ]

 

 

cool cool cool

 
CPhill  Dec 7, 2017
 #2
avatar+257 
+1

Thanks!

 

32 Online Users

avatar
avatar
avatar
We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners.  See details