+0  
 
+1
79
1
avatar+1317 

Help Me Please.

 

Exercise

 

Simplify:√(x+y)(x2- y2)

ManuelBautista2019  Feb 21, 2018

Best Answer 

 #1
avatar+7056 
+2

      √[ (x+y)(x2- y2) ]

\(=\\ \quad\sqrt{(x+y)(x^2- y^2)}\\ =\\ \quad\sqrt{(x+y)(x+y)(x-y)}\\ =\\ \quad\sqrt{(x+y)^2(x-y)}\\ =\\ \quad\sqrt{(x+y)^2}\sqrt{(x-y)} \\ =\\ \quad\left | x+y \right |\sqrt{x-y}\)

hectictar  Feb 21, 2018
Sort: 

1+0 Answers

 #1
avatar+7056 
+2
Best Answer

      √[ (x+y)(x2- y2) ]

\(=\\ \quad\sqrt{(x+y)(x^2- y^2)}\\ =\\ \quad\sqrt{(x+y)(x+y)(x-y)}\\ =\\ \quad\sqrt{(x+y)^2(x-y)}\\ =\\ \quad\sqrt{(x+y)^2}\sqrt{(x-y)} \\ =\\ \quad\left | x+y \right |\sqrt{x-y}\)

hectictar  Feb 21, 2018

7 Online Users

avatar
New Privacy Policy (May 2018)
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.  Privacy Policy