document.write( "Question 144118: Consider f(x) = 3x^4 - 11x^3 + 10x - 4; use the Rational Zero Theorem to find a zero.\r
\n" ); document.write( "\n" ); document.write( "a. x = 0
\n" ); document.write( "b. x = 1
\n" ); document.write( "c. x = -5
\n" ); document.write( "d. x = -1\r
\n" ); document.write( "\n" ); document.write( "The constant term is -4 and the leading coefficient is 3. Then\r
\n" ); document.write( "\n" ); document.write( "constant term: 1, -1, 2, -2, 4, -4
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\n" ); document.write( "leading coefficient: 1, -1, 2, -2, 4, -4, 1/3, -1/3, 2/3, -2/3, 4/3, -4/3\r
\n" ); document.write( "\n" ); document.write( "There is no solution set???? Help
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Algebra.Com's Answer #104884 by solver91311(24713)\"\" \"About 
You can put this solution on YOUR website!
You have identified all of the possible rational zeros. Only 2 of them are represented in your set of answers, so you only have to check those two. Remember that if \"a\" is a zero, then \"f%28a%29=0\"\r
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\n" ); document.write( "\n" ); document.write( "\"f%28x%29+=+3x%5E4+-+11x%5E3+%2B+10x+-+4\"
\n" ); document.write( "\"f%281%29+=+3%281%29%5E4+-+11%281%29%5E3+%2B+10%281%29+-+4=3-11%2B10-4=-2\". Therefore not a zero
\n" ); document.write( "\"f%28-1%29+=+3%28-1%29%5E4+-+11%28-1%29%5E3+%2B+10%28-1%29+-+4=3%2B11-10-4=0\". Therefore -1 is a zero.\r
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\n" ); document.write( "\n" ); document.write( "Answer d.\r
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\n" ); document.write( "\n" ); document.write( "Super Double Plus Extra Credit:
\n" ); document.write( "Are there any other rational zeros? Hint: Use polynomial long division or synthetic division to divide \"f%28x%29\" by \"x%2B1\". Remember to include \"0x%5E2\" as a place holder. Repeat use of the Rational Zero Theorem to find any zeros for the 3rd degree polynomial quotient.\r
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