document.write( "Question 760419: The length of a rectangular sheet of paper is 4 inches more than twice its width. If the area of the sheet is 160 square inches, what are its length and width? Use factoring to solve the problem. \n" ); document.write( "
Algebra.Com's Answer #462677 by Cromlix(4381)\"\" \"About 
You can put this solution on YOUR website!
Width = x
\n" ); document.write( "Length = 4 + 2x
\n" ); document.write( "Area = length * width
\n" ); document.write( "160 = (4 + 2x)*x
\n" ); document.write( "160 = 4x + 2x^2
\n" ); document.write( "2x^2 + 4x - 160 = 0
\n" ); document.write( "Divide by 2
\n" ); document.write( " x^2 + 2x - 80 = 0
\n" ); document.write( " (x + 10)(x - 8) = 0
\n" ); document.write( "x = 8
\n" ); document.write( "x = - 10 (no answer)
\n" ); document.write( "Width = 8 inches
\n" ); document.write( "Length = 20 inches.
\n" ); document.write( "Hope this helps.
\n" ); document.write( ":-)
\n" ); document.write( "
\n" );