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Help Me Pleasesad

 

Exercises: Perform the Operations Indicated

 

4√15 - 10√3/5 + 3√60

 Feb 16, 2018
 #1
avatar+111438 
+1

Manuel.... I made a typo on this question earlier....see my corrected answer here...

 

https://web2.0calc.com/questions/help-please_26975#r1

 

[ I verified my result with WolramAlpha...]

 

 

cool cool cool

 Feb 16, 2018
 #2
avatar+1461 
0

I guess the answer could be this:

 

10√15 - 2√15

 

Am I correct?

 Feb 16, 2018
 #3
avatar+111438 
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See WolframAlpha's various solutions here:

 

http://www.wolframalpha.com/input/?i=4%E2%88%9A15+-+10%E2%88%9A3%2F5%C2%A0%2B+3%E2%88%9A60

 

I don't believe yours is correct.... it would simplify to :  8√15

 

 

cool cool cool

 Feb 16, 2018
 #4
avatar+1461 
+1

Thank You Cphill

 Feb 16, 2018
 #5
avatar+2421 
+1

I believe I have settled this one. The issue is interpretation-based. 

 

Cphill's interpretation: \(4\sqrt{15}-\textcolor{red}{\frac{10\sqrt{3}}{5}}+3\sqrt{60}\)

 

ManuelBautista2019: \(4\sqrt{15}-\textcolor{red}{10\sqrt{\frac{3}{5}}}+3\sqrt{60}\)

 

According to my individual calculation, both of you got the correct answer, assuming your interpretation.

 Feb 16, 2018

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