document.write( "Question 363028: If the sides of a square are each increased by 4 inches, the area becomes
\n" ); document.write( "121 square inches. Find the perimeter of the original square.
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Algebra.Com's Answer #258768 by mananth(16946)\"\" \"About 
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If the sides of a square are each increased by 4 inches, the area becomes
\n" ); document.write( "121 square inches. Find the perimeter of the original square.
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\n" ); document.write( "let side =x
\n" ); document.write( "x+4 is the increased length
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\n" ); document.write( "Area = L^@
\n" ); document.write( "(x+4)^2=121
\n" ); document.write( "x^2+8x+16=121
\n" ); document.write( "x^2+8x-105=0
\n" ); document.write( "x^2+15x-7x-105=0
\n" ); document.write( "x(x+15)-7(x+15)=0
\n" ); document.write( "(x+15)(x-7)=0
\n" ); document.write( "x= 7
\n" ); document.write( "perimeter = 4L = 28 inches
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\n" ); document.write( "m.ananth@hotmail.ca
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