document.write( "Question 31962This question is from textbook Prentice Hall Mathematics
\n" ); document.write( ": $\"sqrt%2828n%5E2%29\"$ i know that the answer is 2n radical 7 but i dont know how to show the work \n" ); document.write( "

Algebra.Com's Answer #18509 by mbarugel(146) $\"\"$ $\"About$

You can put this solution on YOUR website!
Hello!
\n" ); document.write( "You have:
\n" ); document.write( " $\"sqrt%2828n%5E2%29\"$
\n" ); document.write( "Which is the same as:
\n" ); document.write( " $\"sqrt%2828%29sqrt%28n%5E2%29\"$
\n" ); document.write( "This leaves us with:
\n" ); document.write( " $\"sqrt%2828%29n\"$
\n" ); document.write( "now, 28 = 7*4, so we get:
\n" ); document.write( " $\"sqrt%287%29sqrt%284%29n\"$
\n" ); document.write( "And finally,
\n" ); document.write( " $\"sqrt%287%292%2An\"$ \r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "I hope this helps!\r
\n" ); document.write( "\n" ); document.write( "Get more answers at Online Math Answers.com!
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