document.write( "Question 419345: 5n^2-7n+2=0 \n" ); document.write( "
Algebra.Com's Answer #293284 by jim_thompson5910(35256)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( "\"5n%5E2-7n%2B2=0\" Start with the given equation.\r
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\n" ); document.write( "\n" ); document.write( "Notice we have a quadratic equation in the form of \"an%5E2%2Bbn%2Bc\" where \"a=5\", \"b=-7\", and \"c=2\"\r
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\n" ); document.write( "\n" ); document.write( "Let's use the quadratic formula to solve for n\r
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\n" ); document.write( "\n" ); document.write( "\"n+=+%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( "\"n+=+%28-%28-7%29+%2B-+sqrt%28+%28-7%29%5E2-4%285%29%282%29+%29%29%2F%282%285%29%29\" Plug in \"a=5\", \"b=-7\", and \"c=2\"\r
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\n" ); document.write( "\n" ); document.write( "\"n+=+%287+%2B-+sqrt%28+%28-7%29%5E2-4%285%29%282%29+%29%29%2F%282%285%29%29\" Negate \"-7\" to get \"7\". \r
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\n" ); document.write( "\n" ); document.write( "\"n+=+%287+%2B-+sqrt%28+49-4%285%29%282%29+%29%29%2F%282%285%29%29\" Square \"-7\" to get \"49\". \r
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\n" ); document.write( "\n" ); document.write( "\"n+=+%287+%2B-+sqrt%28+49-40+%29%29%2F%282%285%29%29\" Multiply \"4%285%29%282%29\" to get \"40\"\r
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\n" ); document.write( "\n" ); document.write( "\"n+=+%287+%2B-+sqrt%28+9+%29%29%2F%282%285%29%29\" Subtract \"40\" from \"49\" to get \"9\"\r
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\n" ); document.write( "\n" ); document.write( "\"n+=+%287+%2B-+sqrt%28+9+%29%29%2F%2810%29\" Multiply \"2\" and \"5\" to get \"10\". \r
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\n" ); document.write( "\n" ); document.write( "\"n+=+%287+%2B-+3%29%2F%2810%29\" Take the square root of \"9\" to get \"3\". \r
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\n" ); document.write( "\n" ); document.write( "\"n+=+%287+%2B+3%29%2F%2810%29\" or \"n+=+%287+-+3%29%2F%2810%29\" Break up the expression. \r
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\n" ); document.write( "\n" ); document.write( "\"n+=+%2810%29%2F%2810%29\" or \"n+=++%284%29%2F%2810%29\" Combine like terms. \r
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\n" ); document.write( "\n" ); document.write( "\"n+=+1\" or \"n+=+2%2F5\" Simplify. \r
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\n" ); document.write( "\n" ); document.write( "So the answers are \"n+=+1\" or \"n+=+2%2F5\" \r
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\n" ); document.write( "\n" ); document.write( "If you need more help, email me at jim_thompson5910@hotmail.com\r
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\n" ); document.write( "\n" ); document.write( "Also, please consider visiting my website: http://www.freewebs.com/jimthompson5910/home.html and making a donation. Thank you\r
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