document.write( "Question 887235: A sheet of cardboard of length 50 cm and width 26 cm has squares cut out of the corners so that it can be folded to form an open box with a base area of 640 cm2.\r
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document.write( "Find the dimensions of the cut out squares and sketch the obtained equation \n" );
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Algebra.Com's Answer #536492 by edjones(8007)![]() ![]() You can put this solution on YOUR website! Let x be one of the sides of a square. \n" ); document.write( "(50-2x)(26-2x)=640 \n" ); document.write( "4x^2-152x+1300=640 \n" ); document.write( "x^2-38x+325=160 \n" ); document.write( "x^2-38x+165=0 \n" ); document.write( "(x-33)(x-5)=0 \n" ); document.write( "x=5cm \n" ); document.write( "The dimensions: \n" ); document.write( "base: 40 by 16 \n" ); document.write( "each long side: 5 by 40 \n" ); document.write( "Each short side: 5 by 16 \n" ); document.write( ". \n" ); document.write( "Ed \n" ); document.write( " |