document.write( "Question 1155203: A square field had 5 meters added to its length and 2meters added to its width.The field had an area of 130 cm .Find the length of the original field. \n" ); document.write( "
Algebra.Com's Answer #777774 by ankor@dixie-net.com(22740)\"\" \"About 
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A square field had 5 meters added to its length and 2meters added to its width.
\n" ); document.write( "The field had an area of 130 sq/m .
\n" ); document.write( "Find the length of the original field.
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\n" ); document.write( "s = side of the original square
\n" ); document.write( "(s + 5) = the length of the new field
\n" ); document.write( "(s + 2) = the width
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\n" ); document.write( "(s+5)*(s+2) = 130
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\n" ); document.write( "s^2 + 2s + 5s + 10 = 130
\n" ); document.write( "s^2 + 7s + 10 - 130 = 0
\n" ); document.write( "s^2 + 7s - 120 = 0
\n" ); document.write( "Factors to
\n" ); document.write( "(s+15)(s-8) = 0
\n" ); document.write( "A positive solution
\n" ); document.write( "s = 8 meters is the side of the original square
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\n" ); document.write( ":
\n" ); document.write( "Check: (8+5)*(8+2) = 130
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