document.write( "Question 898355: The difference of two numbers is 7 and the sum of their squares is 137.
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document.write( "Find the numbers.\r
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document.write( "The sum of two numbers is 8; the square of the first minus twice the
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document.write( "square of the second equals 7. Find them.\r
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document.write( "Find two numbers that differ by 8 and whose product is 273.\r
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document.write( "There is a rectangle whose perimeter is 46 meters and whose area is
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document.write( "112 square meters. What are its dimensions?\r
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document.write( "The sum of the areas of two squares is 325 square meters. The side of
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document.write( "one increased by the side of the other is 25 meter. Find the length of a
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document.write( "side of each.
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Algebra.Com's Answer #544784 by mananth(16946)![]() ![]() You can put this solution on YOUR website! The difference of two numbers is 7 and the sum of their squares is 137. \n" ); document.write( "Find the numbers.\r \n" ); document.write( "\n" ); document.write( "(x-y)=7 \n" ); document.write( "(x-y)^2=49\r \n" ); document.write( "\n" ); document.write( "x^2+y^2= 137\r \n" ); document.write( "\n" ); document.write( "(x-y)^2+2xy = 137\r \n" ); document.write( "\n" ); document.write( "7^2+2xy=137 \n" ); document.write( "2xy= 137-49 \n" ); document.write( "2xy=88 \n" ); document.write( "xy=44\r \n" ); document.write( "\n" ); document.write( "x-y=7\r \n" ); document.write( "\n" ); document.write( "x=44/y\r \n" ); document.write( "\n" ); document.write( "44/y -y = 7\r \n" ); document.write( "\n" ); document.write( "44-y^2= 7y\r \n" ); document.write( "\n" ); document.write( "y^2+7y-44=0\r \n" ); document.write( "\n" ); document.write( "y^2+11y-4y-44=0\r \n" ); document.write( "\n" ); document.write( "y(y+11)-4(y+11)=0 \n" ); document.write( "(y+11)(y-4)=0\r \n" ); document.write( "\n" ); document.write( "y=-11 OR 4 \r \n" ); document.write( "\n" ); document.write( "x-y=7 \n" ); document.write( "if y=-11 \n" ); document.write( "x+11=7 \n" ); document.write( "x=-4 \n" ); document.write( "(-11, -4)\r \n" ); document.write( "\n" ); document.write( "if y=4 \n" ); document.write( "x=11\r \n" ); document.write( "\n" ); document.write( "(11,4)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "The sum of two numbers is 8; the square of the first minus twice the \n" ); document.write( "square of the second equals 7. Find them.\r \n" ); document.write( "\n" ); document.write( "one number be x \n" ); document.write( "other number = (8-x)\r \n" ); document.write( "\n" ); document.write( "x^2-2(8-x)^2=7 \n" ); document.write( "x^2-2(64-16x+x^2)=7 \n" ); document.write( "x^2-128+32x-2x^2=7\r \n" ); document.write( "\n" ); document.write( "-x^2+32x-135=0\r \n" ); document.write( "\n" ); document.write( "x^2-32x+135=0\r \n" ); document.write( "\n" ); document.write( "x^2-27x-5x+135=0 \n" ); document.write( "x(x-27)-5(x-27)=0\r \n" ); document.write( "\n" ); document.write( "(x-27)(x-5)=0 \n" ); document.write( "x=5 OR 27 \n" ); document.write( "xnot equal to 27 \n" ); document.write( "x= 5 \r \n" ); document.write( "\n" ); document.write( "(5,2)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Find two numbers that differ by 8 and whose product is 273.\r \n" ); document.write( "\n" ); document.write( "x & 8+x \n" ); document.write( "x(8+x)=273 \n" ); document.write( "8x+x^2=273 \n" ); document.write( "x^2+8x -273=0 \n" ); document.write( "x^2+21x-13x-273=0 \n" ); document.write( "x(x+21)-13(x+21)=0\r \n" ); document.write( "\n" ); document.write( "(x+21)(x-13)=0 \n" ); document.write( "x=-21 OR 13\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "There is a rectangle whose perimeter is 46 meters and whose area is \n" ); document.write( "112 square meters. What are its dimensions?\r \n" ); document.write( "\n" ); document.write( "The sum of the areas of two squares is 325 square meters. The side of \n" ); document.write( "one increased by the side of the other is 25 meter. Find the length of a \n" ); document.write( "side of each. \n" ); document.write( " \n" ); document.write( " |