document.write( "Question 481007: Question: \"Each side of a square is 4 m long. When each side is increased by x m, the area is doubled. Find the value of x.\" Please help!!! \n" ); document.write( "
Algebra.Com's Answer #329351 by ewatrrr(24785)\"\" \"About 
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\n" ); document.write( "Hi,
\n" ); document.write( "Each side of a square is 4 m long, therefore A = 16m^2
\n" ); document.write( "When each side is increased by x, then (4+x)(4+x) = 32m^2
\n" ); document.write( " (4+x)(4+x) = 32m^2
\n" ); document.write( " 16 + 8x + x^2 = 32
\n" ); document.write( " x^2 + 8x - 16 = 0
\n" ); document.write( "\"x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+\"
\n" ); document.write( "\"x+=+%28-8+%2B-+sqrt%28+128%29%29%2F%282%29+\"
\n" ); document.write( "tossing out negative solution for number of meters
\n" ); document.write( " x = 1.6569m\r
\n" ); document.write( "\n" ); document.write( "CHECKING our Answer***
\n" ); document.write( " 5.6569*5.6569 = 32m^2 \n" ); document.write( "
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