document.write( "Question 592287: I Need the Solutions Of x^2+9x+20=0
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Algebra.Com's Answer #375907 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( "\"x%5E2%2B9x%2B20=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=1\", \"b=9\", and \"c=20\"\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-%289%29+%2B-+sqrt%28+%289%29%5E2-4%281%29%2820%29+%29%29%2F%282%281%29%29\" Plug in \"a=1\", \"b=9\", and \"c=20\"\r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%28-9+%2B-+sqrt%28+81-4%281%29%2820%29+%29%29%2F%282%281%29%29\" Square \"9\" to get \"81\". \r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%28-9+%2B-+sqrt%28+81-80+%29%29%2F%282%281%29%29\" Multiply \"4%281%29%2820%29\" to get \"80\"\r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%28-9+%2B-+sqrt%28+1+%29%29%2F%282%281%29%29\" Subtract \"80\" from \"81\" to get \"1\"\r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%28-9+%2B-+sqrt%28+1+%29%29%2F%282%29\" Multiply \"2\" and \"1\" to get \"2\". \r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%28-9+%2B-+1%29%2F%282%29\" Take the square root of \"1\" to get \"1\". \r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%28-9+%2B+1%29%2F%282%29\" or \"x+=+%28-9+-+1%29%2F%282%29\" Break up the expression. \r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%28-8%29%2F%282%29\" or \"x+=++%28-10%29%2F%282%29\" Combine like terms. \r
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\n" ); document.write( "\n" ); document.write( "\"x+=+-4\" or \"x+=+-5\" Simplify. \r
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\n" ); document.write( "\n" ); document.write( "So the answers are \"x+=+-4\" or \"x+=+-5\" \r
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