document.write( "Question 1055916: the length of a rectangle is 10 m and its breadth is 5m. if the length and the breadth is each increased by the same amount, the area of the rectangle is doubled. find the length of the bigger rectangle, correct to one decimal place \n" ); document.write( "
Algebra.Com's Answer #671072 by ewatrrr(24785)\"\" \"About 
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the bigger rectangle:
\n" ); document.write( "Lw = A
\n" ); document.write( "(10+x)(5+x) = 100m^2 area of the rectangle is doubled
\n" ); document.write( "50 + 15x + x^2 = 100
\n" ); document.write( "x^2 + 15x - 50 = 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 = (-15 + 5√17 )/2
\n" ); document.write( "Solve for x ( correct to one decimal place)
\n" ); document.write( "L = \"x%2B10\"
\n" ); document.write( "
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