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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document.write( "The length of a side of the original square is ________cm. \n" );
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Algebra.Com's Answer #267689 by checkley79(3341) ![]() You can put this solution on YOUR website! (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. \n" ); document.write( " \n" ); document.write( " |