document.write( "Question 186440: Find the solution: 2x2 + 6x + 5 = 0. \n" ); document.write( "
Algebra.Com's Answer #139720 by jim_thompson5910(35256)\"\" \"About 
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\"2x%5E2%2B6x%2B5=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 \"ax%5E2%2Bbx%2Bc\" where \"a=2\", \"b=6\", and \"c=5\"\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-%286%29+%2B-+sqrt%28+%286%29%5E2-4%282%29%285%29+%29%29%2F%282%282%29%29\" Plug in \"a=2\", \"b=6\", and \"c=5\"\r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%28-6+%2B-+sqrt%28+36+-+4%282%29%285%29+%29%29%2F%282%282%29%29\" Square \"6\" to get \"36\". \r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%28-6+%2B-+sqrt%28+36+-+40%29%29%2F%282%282%29%29\" Multiply \"4%282%29%285%29\" to get \"40\"\r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%28-6+%2B-+sqrt%28-4%29%29%2F%282%282%29%29\" Subtract \"40\" from \"36\" to get \"-4\"\r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%28-6+%2B-+sqrt%28+-4+%29%29%2F%284%29\" Multiply \"2\" and \"2\" to get \"4\". \r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%28-6+%2B-+2%2Ai%29%2F%284%29\" Take the square root of \"-4\" to get \"2%2Ai\". \r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%28-6+%2B+2%2Ai%29%2F%284%29\" or \"x+=+%28-6+-+2%2Ai%29%2F%284%29\" Break up the expression. \r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%28-6%29%2F%284%29+%2B+%282%2Ai%29%2F%284%29\" or \"x+=++%28-6%29%2F%284%29+-+%282%2Ai%29%2F%284%29\" Break up the fraction for each case. \r
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\n" ); document.write( "\n" ); document.write( "\"x+=+-3%2F2%2B%281%2F2%29%2Ai\" or \"x+=++-3%2F2-%281%2F2%29%2Ai\" Reduce. \r
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\n" ); document.write( "\n" ); document.write( "So the answers are \"x+=+-3%2F2%2B%281%2F2%29%2Ai\" or \"x+=++-3%2F2-%281%2F2%29%2Ai\"
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