document.write( "Question 355471: If the sides of a square are decreased by 2cm, the area is decreased by 36cm2. What were the dimensions of the original square? \n" ); document.write( "
Algebra.Com's Answer #253876 by mananth(16946)![]() ![]() You can put this solution on YOUR website! let side of square be x \n" ); document.write( "Area = x^2 \n" ); document.write( "it is decreased by 2 \n" ); document.write( "so new length = x-2 \n" ); document.write( "area = (x-2)^2 \n" ); document.write( ".. \n" ); document.write( "The area decreases by 36 m^2 \n" ); document.write( "x^2-(x-2)^2=36 \n" ); document.write( "x^2-x^2+2x-4=36 \n" ); document.write( "2x-4 = 36 \n" ); document.write( "2x=40 \n" ); document.write( "x= 20 m \n" ); document.write( "... \n" ); document.write( "side = 20m \n" ); document.write( "... \n" ); document.write( "m.ananth@hotmail.ca \n" ); document.write( " |