document.write( "Question 414895: I am having trouble with a quadratic word problem. The word problem is as follows:
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document.write( "The sides of one square have length 3 m more than the sides of a second square. If the area of the larger square is subtracted from 4 times the area of the smaller square, the result is 36 m^2. What are the lengths of the sides of each square? \n" );
document.write( "
Algebra.Com's Answer #290945 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! The sides of one square have length 3 m more than the sides of a second square. If the area of the larger square is subtracted from 4 times the area of the smaller square, the result is 36 m^2. What are the lengths of the sides of each square?\r \n" ); document.write( "\n" ); document.write( "---- \n" ); document.write( "1st Square DATA: \n" ); document.write( "Side = x \n" ); document.write( "Area = x^2 \n" ); document.write( "--- \n" ); document.write( "2nd Square DATA: \n" ); document.write( "side = x+3 \n" ); document.write( "Area = (x+3)^2 \n" ); document.write( "------ \n" ); document.write( "Equation: \n" ); document.write( " 4*smaller area - larger area = 36 m^2 \n" ); document.write( "4x^2 - (x+3)^2 = 36 \n" ); document.write( "--- \n" ); document.write( "4x^2-[x^2+6x+9] - 36 = 0 \n" ); document.write( "--- \n" ); document.write( "4x^-x^2-6x-9-36 = 0 \n" ); document.write( "3x^2-6x-45 = 0 \n" ); document.write( "----- \n" ); document.write( "x^2-2x-15 = 0 \n" ); document.write( "(x-7)(x+2) = 0 \n" ); document.write( "Positive solution: \n" ); document.write( "x = 7m (side of smaller square) \n" ); document.write( "x+3 = 10m (side of larger square) \n" ); document.write( "===================================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "=========== \n" ); document.write( " |