document.write( "Question 1192198: A rectangle has sides of length (2+ √18)metre and (5-4/√2)metres. Express in the form a + b√2,where a and b are integers.
\n" ); document.write( "(i) the value of A, where A square metres is the area of the rectangle.
\n" ); document.write( "(ii) the value of D^2, where D metres is the length of the diagonal of the rectangle.
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Algebra.Com's Answer #824111 by Alan3354(69443)\"\" \"About 
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A rectangle has sides of length (2+ √18)metre and (5-4/√2)metres.
\n" ); document.write( "If you mean \"5+-+4%2Fsqrt%282%29\":
\n" ); document.write( "\"5+-+4%2Fsqrt%282%29+=+5+-+2sqrt%282%29\"
\n" ); document.write( "Express in the form a + b√2,where a and b are integers.
\n" ); document.write( "(i) the value of A, where A square metres is the area of the rectangle.
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\n" ); document.write( "(ii) the value of D^2, where D metres is the length of the diagonal of the rectangle.
\n" ); document.write( "D^2 = (2+ √18)^2 + (5-4/√2)^2 = \"%282%2B+3sqrt%282%29%29%5E2+%2B+%285-2sqrt%282%29%29%5E2\"
\n" ); document.write( "\"D%5E2+=+%284+%2B+12sqrt%282%29+%2B+18%29+%2B+%2825+-20sqrt%282%29+%2B+8%29\"
\n" ); document.write( "\"D%5E2+=+55+-+8sqrt%282%29\"
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