document.write( "Question 365348: If the sides of a square are lengthened by 8 cm, the area becomes 144 cm^2. Find the length of a side of the original square.\r
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document.write( "What is the length of a side of the original square is ? cm. \n" );
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Algebra.Com's Answer #260526 by mananth(16946)![]() ![]() You can put this solution on YOUR website! LET ORIGINAL LENGTH BE X \n" ); document.write( "INCREASED BY 8 \n" ); document.write( "NEW LENGTH = X+8 \n" ); document.write( "Area = L^2 \n" ); document.write( "(x+8)^2= 144 \n" ); document.write( "x^+16x+64=144 \n" ); document.write( "x^2+16x-80=0 \n" ); document.write( "x^2+20x-4x-80=0 \n" ); document.write( "x(x+20)-4(x+20)=0 \n" ); document.write( "(x+20)(x-4)=0 \n" ); document.write( "x = 4 the original length of square \n" ); document.write( "... \n" ); document.write( "m.ananth@hotmail.ca \n" ); document.write( " |