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Algebra.Com's Answer #677449 by math_helper(2461)\"\" \"About 
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\n" ); document.write( "\"+c%5E2+=+a%5E2+%2B+b%5E2+\"
\n" ); document.write( "\"+a%5E2+=+c%5E2-b%5E2+\"
\n" ); document.write( "\"+a%5E2+=+%2815%29%5E2+-+%289%29%5E2+=+225+-+81+=+144+\"
\n" ); document.write( "\"++a+=+sqrt%28144%29+=+12+\"
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