document.write( "Question 1150171: The sum of two numbers is 7, twice their product gives 20. Find the numbers \n" ); document.write( "

Algebra.Com's Answer #771526 by ikleyn(52781) $\"\"$ $\"About$

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document.write( "The sum is 7, the product is 10.\r\n" );
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document.write( "The numbers are 2 and 5.\r\n" );
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document.write( "5 seconds to guess.\r\n" );
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document.write( "In Algebra way,\r\n" );
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document.write( "    x*(7-x) = 10\r\n" );
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document.write( "    7x - x^2 = 10\r\n" );
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document.write( "    x^2 - 7x + 10 = 0\r\n" );
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document.write( "    (x-2)*(x-5) = 0,    etc.\r\n" );
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