document.write( "Question 251552: The sum of two numbers is 32. The sum of the squares of the two numbers is 544. Find the numbers.\r
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Algebra.Com's Answer #183230 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!
\"The sum of two numbers is 32\" translates to \"x%2By=32\"\r
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\n" ); document.write( "\n" ); document.write( "\"The sum of the squares of the two numbers is 544\" means that \"x%5E2%2By%5E2=544\"\r
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\n" ); document.write( "\n" ); document.write( "\"x%2By=32\" Start with the first equation.\r
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\n" ); document.write( "\n" ); document.write( "\"y=32-x\" Subtract x from both sides.\r
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\n" ); document.write( "\n" ); document.write( "\"x%5E2%2By%5E2=544\" Move onto the next equation.\r
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\n" ); document.write( "\n" ); document.write( "\"x%5E2%2B%2832-x%29%5E2=544\" Plug in \"y=32-x\"\r
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\n" ); document.write( "\n" ); document.write( "\"x%5E2%2B1024-64x%2Bx%5E2=544\" FOIL\r
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\n" ); document.write( "\n" ); document.write( "\"x%5E2%2B1024-64x%2Bx%5E2-544=0\" Subtract 544 from both sides.\r
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\n" ); document.write( "\n" ); document.write( "\"2x%5E2-64x%2B480=0\" Combine like terms.\r
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\n" ); document.write( "\n" ); document.write( "Notice that the quadratic \"2x%5E2-64x%2B480\" is in the form of \"Ax%5E2%2BBx%2BC\" where \"A=2\", \"B=-64\", and \"C=480\"\r
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\n" ); document.write( "\n" ); document.write( "Let's use the quadratic formula to solve for \"x\":\r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%28-B+%2B-+sqrt%28+B%5E2-4AC+%29%29%2F%282A%29\" Start with the quadratic formula\r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%28-%28-64%29+%2B-+sqrt%28+%28-64%29%5E2-4%282%29%28480%29+%29%29%2F%282%282%29%29\" Plug in \"A=2\", \"B=-64\", and \"C=480\"\r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%2864+%2B-+sqrt%28+%28-64%29%5E2-4%282%29%28480%29+%29%29%2F%282%282%29%29\" Negate \"-64\" to get \"64\". \r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%2864+%2B-+sqrt%28+4096-4%282%29%28480%29+%29%29%2F%282%282%29%29\" Square \"-64\" to get \"4096\". \r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%2864+%2B-+sqrt%28+4096-3840+%29%29%2F%282%282%29%29\" Multiply \"4%282%29%28480%29\" to get \"3840\"\r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%2864+%2B-+sqrt%28+256+%29%29%2F%282%282%29%29\" Subtract \"3840\" from \"4096\" to get \"256\"\r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%2864+%2B-+sqrt%28+256+%29%29%2F%284%29\" Multiply \"2\" and \"2\" to get \"4\". \r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%2864+%2B-+16%29%2F%284%29\" Take the square root of \"256\" to get \"16\". \r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%2864+%2B+16%29%2F%284%29\" or \"x+=+%2864+-+16%29%2F%284%29\" Break up the expression. \r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%2880%29%2F%284%29\" or \"x+=++%2848%29%2F%284%29\" Combine like terms. \r
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\n" ); document.write( "\n" ); document.write( "\"x+=+20\" or \"x+=+12\" Simplify. \r
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\n" ); document.write( "\n" ); document.write( "So the solutions are \"x+=+20\" or \"x+=+12\" \r
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\n" ); document.write( "\n" ); document.write( "If \"x=20\", then \"y=32-20=12\" or if \"x=12\" then \"y=32-12=20\".\r
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\n" ); document.write( "\n" ); document.write( "This means that the two numbers are simply 20 and 12 (in either order).
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