document.write( "Question 881994: A garden 7 m by 12 m will be expanded by planting a border of flowers. The border will be of the same width around the entire garden and has an area of 92 m2. \r
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\n" ); document.write( "\n" ); document.write( "im very confused on this problem. it also needs to be identified if its quadratic equation or not. please do tell if it is.
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Algebra.Com's Answer #532669 by rothauserc(4718)\"\" \"About 
You can put this solution on YOUR website!
A1 = area of garden including the border (w) = (7+w)*(12+w)
\n" ); document.write( "A2 = area of garden = 7 * 12 = 84
\n" ); document.write( "Area of border = (7+w)*(12+w) - 84 = 92
\n" ); document.write( "(7+w)*(12+w) = 176
\n" ); document.write( "w^2 + 19w + 84 = 176
\n" ); document.write( "this is a quadratic equation
\n" ); document.write( "w^2 + 19w -92 = 0
\n" ); document.write( "factor this equation
\n" ); document.write( "(w-4) * (w+23) = 0
\n" ); document.write( "w is 4 or -23
\n" ); document.write( "our answer has to be w > 0, so w = 4 m
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