document.write( "Question 1101255: The length of a rectangle is 4 more than the width. The area is 357 square centimeters. Find the length and width of the rectangle. \n" ); document.write( "

Algebra.Com's Answer #715845 by ikleyn(52864) $\"\"$ $\"About$

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document.write( "Area = L*W,   or\r\n" );
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document.write( "357 = w*(w+4).\r\n" );
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document.write( "Solve this quadratic equation\r\n" );
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document.write( "w^2 + 4w - 357 = 0,\r\n" );
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document.write( " =  = .\r\n" );
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document.write( "The only positive root is  w = 17.\r\n" );
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document.write( "Answer.  The dimensions of the rectangle are 17 and 21 centimeters.\r\n" );
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document.write( "Check.   17*21 = 357.   ! correct !\r\n" );
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