<?xml version="1.0" encoding="UTF-8"?>
<quiz>
  <question type="stack">
    <name>
      <text>2.0.7 (Addition of Polynomials)</text>
    </name>
    <questiontext format="moodle_auto_format">
      <text><![CDATA[<p>Let \(P(x) = {@px@}\) and \(Q(x) = {@qx@}\).</p>
<p> Find P(x) + Q(x).</p>

<p>\(P(x) + Q(x) = \)[[input:ans1]] [[validation:ans1]]</p>]]></text>
    </questiontext>
    <generalfeedback format="moodle_auto_format">
      <text><![CDATA[<p>Remember that in order to sum two polynomials we collect like terms so
\[
P(x) + Q(x) = {@px@} + {@qx@} = {@ta1@}.
\]</p>]]></text>
    </generalfeedback>
    <defaultgrade>1</defaultgrade>
    <penalty>0.1</penalty>
    <hidden>0</hidden>
    <idnumber/>
    <stackversion>
      <text>2020070100</text>
    </stackversion>
    <questionvariables>
      <text>a0: 1+ rand(10);
a1: 1+ rand(10);
a2: 1+ rand(10);
a3: 1+ rand(10);

b0: 1+ rand(10);
b1: 1+ rand(10);
b2: 1+ rand(10);
b3: 1+ rand(10);

px: a3*x^3 + a2*x^2 + a1*x + a0;
qx: b3*x^3 + b2*x^2 + b1*x + b0;

ta1: px + qx</text>
    </questionvariables>
    <specificfeedback format="html">
      <text>[[feedback:prt1]]</text>
    </specificfeedback>
    <questionnote format="moodle_auto_format">
      <text>P(x)= {@px@}, Q(x) ={@qx@}</text>
    </questionnote>
    <questiondescription format="moodle_auto_format">
      <text/>
    </questiondescription>
    <questionsimplify>1</questionsimplify>
    <assumepositive>0</assumepositive>
    <assumereal>0</assumereal>
    <prtcorrect format="html">
      <text><![CDATA[<span style="font-size: 1.5em; color:green;"><i class="fa fa-check"></i></span> Correct answer, well done.]]></text>
    </prtcorrect>
    <prtpartiallycorrect format="html">
      <text><![CDATA[<span style="font-size: 1.5em; color:orange;"><i class="fa fa-adjust"></i> Your answer is partially correct.]]></text>
    </prtpartiallycorrect>
    <prtincorrect format="html">
      <text><![CDATA[<span style="font-size: 1.5em; color:red;"><i class="fa fa-times"></i></span> Incorrect answer.]]></text>
    </prtincorrect>
    <decimals>.</decimals>
    <scientificnotation>*10</scientificnotation>
    <multiplicationsign>none</multiplicationsign>
    <sqrtsign>1</sqrtsign>
    <complexno>i</complexno>
    <inversetrig>cos-1</inversetrig>
    <logicsymbol>lang</logicsymbol>
    <matrixparens>[</matrixparens>
    <isbroken>0</isbroken>
    <variantsselectionseed/>
    <input>
      <name>ans1</name>
      <type>algebraic</type>
      <tans>ta1</tans>
      <boxsize>15</boxsize>
      <strictsyntax>1</strictsyntax>
      <insertstars>0</insertstars>
      <syntaxhint/>
      <syntaxattribute>0</syntaxattribute>
      <forbidwords/>
      <allowwords/>
      <forbidfloat>1</forbidfloat>
      <requirelowestterms>0</requirelowestterms>
      <checkanswertype>0</checkanswertype>
      <mustverify>1</mustverify>
      <showvalidation>1</showvalidation>
      <options/>
    </input>
    <prt>
      <name>prt1</name>
      <value>1.0000000</value>
      <autosimplify>1</autosimplify>
      <feedbackstyle>1</feedbackstyle>
      <feedbackvariables>
        <text/>
      </feedbackvariables>
      <node>
        <name>0</name>
        <description/>
        <answertest>AlgEquiv</answertest>
        <sans>ans1</sans>
        <tans>ta1</tans>
        <testoptions/>
        <quiet>0</quiet>
        <truescoremode>=</truescoremode>
        <truescore>1.0000000</truescore>
        <truepenalty/>
        <truenextnode>-1</truenextnode>
        <trueanswernote>prt1-1-T</trueanswernote>
        <truefeedback format="html">
          <text/>
        </truefeedback>
        <falsescoremode>=</falsescoremode>
        <falsescore>0.0000000</falsescore>
        <falsepenalty/>
        <falsenextnode>-1</falsenextnode>
        <falseanswernote>prt1-1-F</falseanswernote>
        <falsefeedback format="html">
          <text/>
        </falsefeedback>
      </node>
    </prt>
    <deployedseed>683243566</deployedseed>
    <deployedseed>1351970536</deployedseed>
    <deployedseed>1092766425</deployedseed>
    <deployedseed>1739902903</deployedseed>
    <deployedseed>1002036550</deployedseed>
    <deployedseed>2047152298</deployedseed>
    <deployedseed>423888901</deployedseed>
    <deployedseed>816680788</deployedseed>
    <deployedseed>110405998</deployedseed>
    <deployedseed>2078210820</deployedseed>
    <deployedseed>612401785</deployedseed>
    <deployedseed>1134997432</deployedseed>
    <deployedseed>1841969952</deployedseed>
    <deployedseed>994229106</deployedseed>
    <deployedseed>751149491</deployedseed>
    <deployedseed>894585063</deployedseed>
    <deployedseed>297304799</deployedseed>
    <deployedseed>662828926</deployedseed>
    <deployedseed>1275253821</deployedseed>
    <deployedseed>1805974698</deployedseed>
    <deployedseed>2122337573</deployedseed>
    <deployedseed>997127089</deployedseed>
    <deployedseed>111424163</deployedseed>
    <deployedseed>1247886932</deployedseed>
    <deployedseed>1086474587</deployedseed>
    <deployedseed>1676473223</deployedseed>
    <deployedseed>694491720</deployedseed>
    <deployedseed>559494341</deployedseed>
    <deployedseed>118079231</deployedseed>
    <deployedseed>1107514017</deployedseed>
    <deployedseed>1045302902</deployedseed>
    <deployedseed>575404791</deployedseed>
    <deployedseed>768353719</deployedseed>
    <deployedseed>1057545226</deployedseed>
    <deployedseed>286468753</deployedseed>
    <deployedseed>1991151792</deployedseed>
    <deployedseed>58470062</deployedseed>
    <deployedseed>699993606</deployedseed>
    <deployedseed>1103061158</deployedseed>
    <deployedseed>2053977939</deployedseed>
    <deployedseed>868841185</deployedseed>
    <deployedseed>1739463088</deployedseed>
    <deployedseed>964610979</deployedseed>
    <deployedseed>1624450462</deployedseed>
    <deployedseed>786502331</deployedseed>
    <deployedseed>1529566213</deployedseed>
    <deployedseed>2084130397</deployedseed>
    <deployedseed>273295540</deployedseed>
    <deployedseed>377151663</deployedseed>
    <deployedseed>69375902</deployedseed>
    <qtest>
      <testcase>1</testcase>
      <description/>
      <testinput>
        <name>ans1</name>
        <value>ta1</value>
      </testinput>
      <expected>
        <name>prt1</name>
        <expectedscore>1.0000000</expectedscore>
        <expectedpenalty>0.0000000</expectedpenalty>
        <expectedanswernote>prt1-1-T</expectedanswernote>
      </expected>
    </qtest>
    <qtest>
      <testcase>2</testcase>
      <description/>
      <testinput>
        <name>ans1</name>
        <value>ta1-1</value>
      </testinput>
      <expected>
        <name>prt1</name>
        <expectedscore>0.0000000</expectedscore>
        <expectedpenalty>0.1000000</expectedpenalty>
        <expectedanswernote>prt1-1-F</expectedanswernote>
      </expected>
    </qtest>
  </question>
</quiz>
