document.write( "Question 949266: 1. The length of a rectangular window is 5 feet more than its width, w. The area of the window is 36 square feet. Write an equation to represent the area of the window. Please have your final equation equal to zero. \n" ); document.write( "
Algebra.Com's Answer #579565 by MathLover1(20849)\"\" \"About 
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\n" ); document.write( "first, you know that the window is a rectangular, and the area is \"A=L%2AW\"\r
\n" ); document.write( "\n" ); document.write( "given that the length \"L\" of a window is \"5ft\" more than its width \"W\",
\n" ); document.write( "so, we have \"L=W%2B5ft\"...eq.1\r
\n" ); document.write( "\n" ); document.write( "if the area of the window is \"A=36ft%5E2\", then we have\r
\n" ); document.write( "\n" ); document.write( "\"36ft%5E2=L%2AW\"....substitute \"L\" from eq.1\r
\n" ); document.write( "\n" ); document.write( "\"36ft%5E2=%28W%2B5ft%29%2AW\"......solve for \"W\"\r
\n" ); document.write( "\n" ); document.write( "\"36ft%5E2=W%5E2%2B5ft%2AW\"\r
\n" ); document.write( "\n" ); document.write( "\"0=W%5E2%2B5ft%2AW-36ft%5E2\"\r
\n" ); document.write( "\n" ); document.write( "\"0=W%5E2%2B5ft%2AW-36ft%5E2\"...factor completely\r
\n" ); document.write( "\n" ); document.write( "\"0=W%5E2%2B9ft%2AW-4ft%2AW-36ft%5E2\"\r
\n" ); document.write( "\n" ); document.write( "\"0=%28W%5E2%2B9ft%2AW%29-%284ft%2AW%2B36ft%5E2%29\"\r
\n" ); document.write( "\n" ); document.write( "\"0=W%28W%2B9ft%29-4ft%28W%2B9ft%29\"\r
\n" ); document.write( "\n" ); document.write( "\"%28W-4ft%29%28W%2B9ft%29+=+0\"\r
\n" ); document.write( "\n" ); document.write( "solutions:\r
\n" ); document.write( "\n" ); document.write( "if \"%28W-4ft%29+=+0\"=> \"W=4ft\"\r
\n" ); document.write( "\n" ); document.write( "if \"%28W%2B9ft%29+=+0\"=>\"W=-9ft\"..we cannot use this solution, the width cannot be negative\r
\n" ); document.write( "\n" ); document.write( "so, the width is \"highlight%28W=4ft%29\"\r
\n" ); document.write( "\n" ); document.write( "go to eq.1 and find the length:\r
\n" ); document.write( "\n" ); document.write( "\"L=W%2B5ft\"...eq.1\r
\n" ); document.write( "\n" ); document.write( "\"L=4ft%2B5ft\"\r
\n" ); document.write( "\n" ); document.write( "\"highlight%28L=9ft%29\"\r
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