document.write( "Question 376274: If the sides of a square are lengthened by 8cm, the area becomes 225cm^2. Find the length of a side of the original square. \r
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Algebra.Com's Answer #267689 by checkley79(3341)\"\" \"About 
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(x+8)^2=225
\n" ); document.write( "x^2+16x+64=225
\n" ); document.write( "x^2+16x+64-225=0
\n" ); document.write( "x^2+16x-161=0
\n" ); document.write( "(x-7)(x+23)=0
\n" ); document.write( "x-7=0
\n" ); document.write( "x=7 cm. ans.
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