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      <text>1.2.3.2 Which are polynomials</text>
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      <text><![CDATA[<p class="HELM_exercise">Exercise <br></p>
<p>Which of the following expressions are polynomials?  Give the degree of those which are, put \(0\) if they are not.</p>

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<caption></caption>
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<th scope="col" style="text-align:center">&nbsp;&nbsp;polynomial&nbsp;&nbsp;</th>
<th scope="col" style="text-align:center">degree</th>
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<td style="text-align:center">\( 3x^2+4x+2 \)</td>
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<td style="text-align:center">[[input:ans6]] [[validation:ans6]] [[feedback:prt6]]</td>
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<td style="text-align:center">\( \dfrac{1}{x+1} \)</td>
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<td style="text-align:center">[[input:ans7]] [[validation:ans7]] [[feedback:prt7]]</td>
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<td style="text-align:center">\( \sqrt{x} \)</td>
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<td style="text-align:center">\( 2t+4 \)</td>
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<td style="text-align:center">\( 3x^2+\dfrac{4}{x}+2 \)</td>
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<p>Recall that a polynomial expression must contain only terms involving non-negative whole number powers of the variable.</p>
<p></p><p><br></p>]]></text>
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        <name>prt5</name>
        <expectedscore>1.0000000</expectedscore>
        <expectedpenalty>0.0000000</expectedpenalty>
        <expectedanswernote>prt5-1-T</expectedanswernote>
      </expected>
      <expected>
        <name>prt6</name>
        <expectedscore>1.0000000</expectedscore>
        <expectedpenalty>0.0000000</expectedpenalty>
        <expectedanswernote>prt6-1-T</expectedanswernote>
      </expected>
      <expected>
        <name>prt7</name>
        <expectedscore>1.0000000</expectedscore>
        <expectedpenalty>0.0000000</expectedpenalty>
        <expectedanswernote>prt7-1-T</expectedanswernote>
      </expected>
      <expected>
        <name>prt8</name>
        <expectedscore>1.0000000</expectedscore>
        <expectedpenalty>0.0000000</expectedpenalty>
        <expectedanswernote>prt8-1-T</expectedanswernote>
      </expected>
      <expected>
        <name>prt9</name>
        <expectedscore>1.0000000</expectedscore>
        <expectedpenalty>0.0000000</expectedpenalty>
        <expectedanswernote>prt9-1-T</expectedanswernote>
      </expected>
    </qtest>
    <qtest>
      <testcase>2</testcase>
      <description/>
      <testinput>
        <name>ans1</name>
        <value>N</value>
      </testinput>
      <testinput>
        <name>ans10</name>
        <value>1</value>
      </testinput>
      <testinput>
        <name>ans2</name>
        <value>Y</value>
      </testinput>
      <testinput>
        <name>ans3</name>
        <value>Y</value>
      </testinput>
      <testinput>
        <name>ans4</name>
        <value>N</value>
      </testinput>
      <testinput>
        <name>ans5</name>
        <value>Y</value>
      </testinput>
      <testinput>
        <name>ans6</name>
        <value>0</value>
      </testinput>
      <testinput>
        <name>ans7</name>
        <value>1</value>
      </testinput>
      <testinput>
        <name>ans8</name>
        <value>1</value>
      </testinput>
      <testinput>
        <name>ans9</name>
        <value>0</value>
      </testinput>
      <expected>
        <name>prt1</name>
        <expectedscore>0.0000000</expectedscore>
        <expectedpenalty>0.1000000</expectedpenalty>
        <expectedanswernote>prt1-1-F</expectedanswernote>
      </expected>
      <expected>
        <name>prt10</name>
        <expectedscore>0.0000000</expectedscore>
        <expectedpenalty>0.1000000</expectedpenalty>
        <expectedanswernote>prt10-1-F</expectedanswernote>
      </expected>
      <expected>
        <name>prt2</name>
        <expectedscore>0.0000000</expectedscore>
        <expectedpenalty>0.1000000</expectedpenalty>
        <expectedanswernote>prt2-1-F</expectedanswernote>
      </expected>
      <expected>
        <name>prt3</name>
        <expectedscore>0.0000000</expectedscore>
        <expectedpenalty>0.1000000</expectedpenalty>
        <expectedanswernote>prt3-1-F</expectedanswernote>
      </expected>
      <expected>
        <name>prt4</name>
        <expectedscore>0.0000000</expectedscore>
        <expectedpenalty>0.1000000</expectedpenalty>
        <expectedanswernote>prt4-1-F</expectedanswernote>
      </expected>
      <expected>
        <name>prt5</name>
        <expectedscore>0.0000000</expectedscore>
        <expectedpenalty>0.1000000</expectedpenalty>
        <expectedanswernote>prt5-1-F</expectedanswernote>
      </expected>
      <expected>
        <name>prt6</name>
        <expectedscore>0.0000000</expectedscore>
        <expectedpenalty>0.1000000</expectedpenalty>
        <expectedanswernote>prt6-1-F</expectedanswernote>
      </expected>
      <expected>
        <name>prt7</name>
        <expectedscore>0.0000000</expectedscore>
        <expectedpenalty>0.1000000</expectedpenalty>
        <expectedanswernote>prt7-1-F</expectedanswernote>
      </expected>
      <expected>
        <name>prt8</name>
        <expectedscore>0.0000000</expectedscore>
        <expectedpenalty>0.1000000</expectedpenalty>
        <expectedanswernote>prt8-1-F</expectedanswernote>
      </expected>
      <expected>
        <name>prt9</name>
        <expectedscore>0.0000000</expectedscore>
        <expectedpenalty>0.1000000</expectedpenalty>
        <expectedanswernote>prt9-1-F</expectedanswernote>
      </expected>
    </qtest>
  </question>
</quiz>
