document.write( "Question 993262: 2 numbers that sum of them is 26 and when you multiply them is 315 \n" ); document.write( "
Algebra.Com's Answer #613055 by farohw(175)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( "Let x + y = 26 represent the sum of two numbers is 26, and x*y = 315 for the product of 315. \r
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\n" ); document.write( "\n" ); document.write( "x + y = 26 --> y = 26 - x\r
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\n" ); document.write( "\n" ); document.write( "By substitution,\r
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\n" ); document.write( "\n" ); document.write( "x*y = 315 --> x*(26 - x) = 315\r
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\n" ); document.write( "\n" ); document.write( "26x - x^2 = 315 --> x^2 - 26x - 315 = 0\r
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\n" ); document.write( "\n" ); document.write( "becomes (x - 35)(x + 9) = 0 when you factor.\r
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\n" ); document.write( "\n" ); document.write( "Thus, x - 35 = 0 and x + 9 = 0 yields\r
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\n" ); document.write( "\n" ); document.write( "x = 35, x = -9\r
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\n" ); document.write( "\n" ); document.write( "So if you add 35 + (-9) = 26\r
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\n" ); document.write( "\n" ); document.write( "However, when you multiply 35*(-9) = -315 not 315.\r
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