+0  
 
0
135
1
avatar

This is the first part of a three-part problem. Express \(18\sqrt 8\) in the form \( a\sqrt b\)where a and b are integers and b is as small as possible. Hint(s): Factor sqrt(8) as the product of two square roots, one of which is the square root of a perfect square. 

 

 Part 2,Express  \(8\sqrt{18}\)  in the form \(a\sqrt b\), where a and b are integers and b is as small as possible.

 

part 3 \(18\sqrt 8-8\sqrt{18}=\sqrt n\)what is n?

Guest Jul 18, 2017
edited by Guest  Jul 18, 2017
Sort: 

1+0 Answers

 #1
avatar+26357 
+1

Part 1.  \(18\sqrt8\rightarrow 18\sqrt{2^2\times2}\rightarrow18\times2\sqrt2\rightarrow36\sqrt2\)

 

Part 2. \(8\sqrt{18}\rightarrow8\sqrt{3^2\times2}\rightarrow8\times3\sqrt2\rightarrow24\sqrt2\)

 

Part 3.  Now you have parts 1 and 2 you should be able to have a good go at this yourself.

Alan  Jul 18, 2017

25 Online Users

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