document.write( "Question 442571: Find the square root. Assume that all variables are unrestricted, and use absolute value symbols if necessary\r
\n" ); document.write( "\n" ); document.write( "sqrt (a^2+2a+1)
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Algebra.Com's Answer #305293 by swincher4391(1107)\"\" \"About 
You can put this solution on YOUR website!
Notice that \"highlight%28a%5E2%29%2B2a%2Bhighlight%281%29\" are perfect squares.\r
\n" ); document.write( "\n" ); document.write( "\"%28a%29%5E2+=+a%5E2\"
\n" ); document.write( "\"%281%29%5E2+=+1\"\r
\n" ); document.write( "\n" ); document.write( "Then the factorization of \"a%5E2%2B2a%2B1+=+%28a%2B1%29%5E2\"\r
\n" ); document.write( "\n" ); document.write( "Recall that \"sqrt%28x%5E2%29+=+abs%28x%29\"\r
\n" ); document.write( "\n" ); document.write( "Then \"sqrt%28%28a%2B1%29%5E2%29+=+abs%28a%2B1%29\"\r
\n" ); document.write( "\n" ); document.write( "\"abs%28a%2B1%29\" is our answer.
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