document.write( "Question 1103578: A rectangular field originally has dimensions 65m by 35m. Its area is reduced by removing a strip of equal width from the east and the north sides. The area of the new field is 1000 square meters. Write a quadratic equation to model this situation. Use ‘x’ for the width of the strips removed. Solve the equation to find the dimensions of the new field.
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Algebra.Com's Answer #718262 by josgarithmetic(39617)\"\" \"About 
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\n" ); document.write( "..., by removing a strip of equal width from the east and the north sides.
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\n" ); document.write( "\n" ); document.write( "\"%2865-x%29%2835-x%29=1000\"\r
\n" ); document.write( "\n" ); document.write( "Notice that the two factors for 1000 differ by 30. You might try to use that. \r
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\n" ); document.write( "\n" ); document.write( "Otherwise, \"65%2A35-35x-65x%2Bx%5E2=1000\"
\n" ); document.write( "\"x%5E2-100x%2B65%2A35-1000=0\"
\n" ); document.write( "\"x%5E2-100x%2B1275=0\"
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\n" ); document.write( "discriminant \"10000-4%2A1275=4900=70%5E2\"\r
\n" ); document.write( "\n" ); document.write( "\"x=%28100%2B-+70%29%2F2\"\r
\n" ); document.write( "\n" ); document.write( "\"highlight%28x=15%2Cor%2Ccross%28x=85%29%29\"\r
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\n" ); document.write( "\n" ); document.write( "New dimensions: 50 meters by 20 meters
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