document.write( "Question 355718: The area of a rectang;e is 70. If the length is one less than 3 times the width,find the length and the width. \n" ); document.write( "
Algebra.Com's Answer #254003 by ewatrrr(24785)\"\" \"About 
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Hi,
\n" ); document.write( "*Note: Area is length * width
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\n" ); document.write( "let x be the width. then (3x-1) would be the length
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\n" ); document.write( "question states
\n" ); document.write( "x(3x-1) = 70
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\n" ); document.write( "\"3x%5E2+-x+-+70+=+0\"
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\n" ); document.write( "solve using the quadratic formula
\n" ); document.write( "\"x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+\"
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\n" ); document.write( "\"x+=+%281+%2B-+sqrt%28+841+%29%29%2F%286%29+\"
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\n" ); document.write( "\"x+=+%281+%2B-+29%29%2F%286%29+\"\r
\n" ); document.write( "\n" ); document.write( "x = 5 and
\n" ); document.write( "x = -28/6 = -14/3 = -4.667
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