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<p><span style="font-weight: bold; color: #006600;">Troba les arrels del polinomi P(x) = «math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mstyle mathsize=¨12px¨»«mrow»«mo mathvariant=¨bold¨ mathcolor=¨#003300¨»§#160;«/mo»«mo mathvariant=¨bold¨ mathcolor=¨#003300¨»#«/mo»«mi mathvariant=¨bold¨ mathcolor=¨#003300¨»P«/mi»«/mrow»«/mstyle»«/math»</span><br style="font-weight: bold;" /><br style="font-weight: bold;" /><span style="font-weight: bold; color: #ff3300;">Format de la resposta: </span>{-2,-1, 0, 1,2,3} Si hi ha una arrel múltiple s'ha de repetir!</p>
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Answer 1
Answer
Grade
None
100%
90%
83.33333%
80%
75%
70%
66.66667%
60%
50%
40%
33.33333%
30%
25%
20%
16.66667%
14.28571%
12.5%
11.11111%
10%
5%
Feedback
Answer 2
Answer
Grade
None
100%
90%
83.33333%
80%
75%
70%
66.66667%
60%
50%
40%
33.33333%
30%
25%
20%
16.66667%
14.28571%
12.5%
11.11111%
10%
5%
Feedback
Settings for multiple tries
Penalty for each incorrect try
100%
50%
33.33333%
25%
20%
10%
0%
Hint 1
Hint text
<p style="text-align: justify;"><strong><span style="color: #000080;">Cal començar traient x<sup>2</sup> en factor ja que el polinomi no té terme independent; la 1a arrel <span style="text-decoration: underline; font-size: medium;">doble</span> és zero.<br /></span></strong></p> <p style="text-align: justify;"><strong><span style="color: #000080;">Després aplica el mètode de Ruffini al polinomi de grau 3 que has trobat.</span></strong></p> <p> </p>
Hint 2
Hint text
<p style="text-align: justify;"><span style="color: #0000ff;"><strong>Si apliques el mètode de Ruffini al polinomi que has trobat traient x<sup>2</sup> en factor, «math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mstyle mathsize=¨12px¨»«mrow»«mo mathvariant=¨bold¨ mathcolor=¨#0000FF¨»#«/mo»«mi mathvariant=¨bold¨ mathcolor=¨#0000FF¨»P«/mi»«mn mathvariant=¨bold¨ mathcolor=¨#0000FF¨»1«/mn»«/mrow»«/mstyle»«/math», trobes la 3a arrel, «math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mstyle mathsize=¨12px¨»«mrow»«mo mathvariant=¨bold¨ mathcolor=¨#0000FF¨»#«/mo»«mi mathvariant=¨bold¨ mathcolor=¨#0000FF¨»a«/mi»«mn mathvariant=¨bold¨ mathcolor=¨#0000FF¨»3«/mn»«/mrow»«/mstyle»«/math».</strong></span></p> <p style="text-align: justify;"><span style="color: #0000ff;"><strong>El quocient del mètode de Ruffini és un polinomi de 2n grau amb dues solucions, la 4a i la 5a arrel.</strong></span></p>
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Thursday, 23 August 2018, 11:08 AM
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