document.write( "Question 1197256: Find the 10th term of the sequence -37,-34,-41 \n" ); document.write( "
Algebra.Com's Answer #830450 by MathLover1(20850)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( "Find the \"10\"th term of the sequence \r
\n" ); document.write( "\n" ); document.write( "\"-37\",\"-34\",\"-41\"\r
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\n" ); document.write( "\n" ); document.write( "nth term equation is:\r
\n" ); document.write( "\n" ); document.write( "\"a%5Bn%5D=an%5E2%2Bbn%2Bc\"\r
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\n" ); document.write( "\n" ); document.write( "first term: \"-37\" =>\"n=1\"
\n" ); document.write( "second term:\"+-34\" =>\"n=2\"
\n" ); document.write( "third term: \"-41+\"=>\"n=3\"\r
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\n" ); document.write( "\n" ); document.write( "make system of equations:\r
\n" ); document.write( "\n" ); document.write( " \"+-37=a%2A1%5E2%2Bb%2A1%2Bc\"
\n" ); document.write( "\"-34=a%2A2%5E2%2Bb%2A2%2Bc\"
\n" ); document.write( "\"-41=a%2A3%5E2%2Bb%2A3%2Bc\"
\n" ); document.write( "_____________________\r
\n" ); document.write( "\n" ); document.write( "\"++-37=a%2Bb%2Bc\"..........eq.1
\n" ); document.write( "\"-34=4a%2B2b%2Bc\"..........eq.2
\n" ); document.write( "\"-41=9a%2B3b%2Bc\"..........eq.3
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\n" ); document.write( "\n" ); document.write( "subtract eq.1 from eq.2\r
\n" ); document.write( "\n" ); document.write( "\"-34-%28-37%29=4a%2B2b%2Bc-a-b-c\"
\n" ); document.write( "\"3=3a%2Bb\"
\n" ); document.write( "\"b=3-3a\"..........eq.1a\r
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\n" ); document.write( "\n" ); document.write( "subtract eq.1 from eq.3\r
\n" ); document.write( "\n" ); document.write( "\"-41-%28-37%29=9a%2B3b%2Bc-a-b-c\"
\n" ); document.write( "\"-4=8a+%2B+2b\".....divide by \"2\"
\n" ); document.write( "\"-2=4a+%2B+b\"
\n" ); document.write( "\"b=-2-4a\".............eq.2a\r
\n" ); document.write( "\n" ); document.write( "from eq.1a and eq.2a we have\r
\n" ); document.write( "\n" ); document.write( "\"3-3a=-2-4a\"\r
\n" ); document.write( "\n" ); document.write( "\"4a-3a=-2-3\"\r
\n" ); document.write( "\n" ); document.write( "\"a=-5\"\r
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\n" ); document.write( "\n" ); document.write( "go to\r
\n" ); document.write( "\n" ); document.write( "\"b=3-3a\"..........eq.1a, substitute \"a\"\r
\n" ); document.write( "\n" ); document.write( "\"b=3-3%28-5%29\"\r
\n" ); document.write( "\n" ); document.write( "\"b=3%2B15\"\r
\n" ); document.write( "\n" ); document.write( "\"b=18\"\r
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\n" ); document.write( "\n" ); document.write( "go to\r
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\n" ); document.write( "\n" ); document.write( "\"++-37=a%2Bb%2Bc\"..........eq.1, substitute \"a\" and \"b\"\r
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\n" ); document.write( "\n" ); document.write( "\"++-37=-5%2B18%2Bc\"..........solve for \"c\"\r
\n" ); document.write( "\n" ); document.write( "\"++-37%2B5-18=c\"\r
\n" ); document.write( "\n" ); document.write( "\"c=-50\"\r
\n" ); document.write( "\n" ); document.write( "so, solving this system we got\r
\n" ); document.write( "\n" ); document.write( "\"a+=+-5\", \"b+=+18\", \"c+=+-50\"\r
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\n" ); document.write( "\n" ); document.write( "then nth term equation is:\r
\n" ); document.write( "\n" ); document.write( "\"a%5Bn%5D=-5n%5E2%2B18n-50\"\r
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\n" ); document.write( "\n" ); document.write( "now we can find the \"10\"th term of the sequence
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\n" ); document.write( "\"n=10\"\r
\n" ); document.write( "\n" ); document.write( "\"a%5B10%5D=-5%2A10%5E2%2B18%2A10-50\"\r
\n" ); document.write( "\n" ); document.write( " \"a%5B10%5D=-370\"\r
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