SOLUTION: {{{sqrt(28n^2)}}} i know that the answer is 2n radical 7 but i dont know how to show the work

Algebra ->  Radicals -> SOLUTION: {{{sqrt(28n^2)}}} i know that the answer is 2n radical 7 but i dont know how to show the work      Log On


   

Question 31962This question is from textbook Prentice Hall Mathematics
: sqrt%2828n%5E2%29 i know that the answer is 2n radical 7 but i dont know how to show the work This question is from textbook Prentice Hall Mathematics

Answer by mbarugel(146) About Me  (Show Source):
You can put this solution on YOUR website!
Hello!
You have:
sqrt%2828n%5E2%29
Which is the same as:
sqrt%2828%29sqrt%28n%5E2%29
This leaves us with:
sqrt%2828%29n
now, 28 = 7*4, so we get:
sqrt%287%29sqrt%284%29n
And finally,
sqrt%287%292%2An

I hope this helps!
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