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Editing a short answer - math & science question by WIRIS
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Test-Lidia
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<p><span style="font-weight: bold; color: #003300; font-size: medium;" data-mce-mark="1"><span style="text-decoration: underline;" data-mce-mark="1">Resol</span> l'equació: </span></p> <p><span style="font-weight: bold; color: #003300;">#m (#a x - #b) - #n (#c x + #d) = #o (#e x + #f) - #p (#g x - #h)</span><br /><br /><span style="font-weight: bold; color: #ff6600;">Format de la resposta: </span>x=-3/4 <br /><span style="font-weight: bold; color: #0000ff;"><br /></span></p>
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<p><strong><span style="color: #003300;">La solució és</span></strong> #sol</p>
No, case is unimportant
Yes, case must match
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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;"><span style="color: #0000ff;"><strong>Primer, multipliquem el parèntesi pel nombre que té al davant sense tenir en compte el seu signe: </strong></span><br /><span style="color: #0000ff;"><strong>(#a_m*x - #b_m) - (#c_n*x + #d_n) = (#e_o*x + #f_o) - (#g_p*x - #h_p)</strong></span><br /><br /><span style="color: #0000ff;"><strong>Segon, es treuen els parèntesis. Si un parèntesi té un signe - al davant, cal canviar tots els signes dels monomis que estan dins el parèntesi, sinó no!</strong></span><br /><span style="color: #0000ff;"><strong>El resultat de treure parèntesis és:</strong></span><br /><span style="color: #0000ff;"><strong>#a_m*x - #b_m - #c_n*x - #d_n = #e_o*x + #f_o - #g_p*x + #h_p</strong></span><br /><br /><span style="color: #0000ff;"><strong>Només falta agrupar!</strong></span></p>
Hint 2
Hint text
<p><span style="color: #0000ff;"><strong>Un cop simplificada, l'equació s'escriu #r_11.</strong></span></p> <p><span style="color: #0000ff;"><strong>Toca traslladar els NOMBRES cap a la dreta, #z1 #b2 als dos membres; </strong></span></p> <p><span style="color: #0000ff;"><strong>i traslladar les INCÒGNITES cap a l'esquerra #z2 #c2·x als dos membres</strong></span></p>
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Thursday, 23 August 2018, 11:08 AM
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