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<Text-field style="Heading 1" layout="Normal"><Font encoding="UTF-8">f\303\263rmula de Cardano,</Font></Text-field>
<Text-field style="Text" layout="Normal"><Font italic="true">n.</Font><Font encoding="UTF-8"> o nome comunemente dado \303\240 f\303\263rmula, devido a Ferro e Tartaglia, para a </Font><Hyperlink linktarget="Dictionary:Definition/solutionbyradicals" hyperlink="true"><Font style="Dictionary Hyperlink" family="Times New Roman" encoding="UTF-8">solu\303\247\303\243o por radicais</Font></Hyperlink><Font encoding="UTF-8"> da equa\303\247\303\243o </Font><Hyperlink linktarget="Dictionary:Definition/cubic" hyperlink="true"><Font style="Dictionary Hyperlink" family="Times New Roman" encoding="UTF-8">c\303\272bica</Font></Hyperlink> geral normalizada, </Text-field>
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Substituindo <Font italic="true">x</Font> = <Font italic="true">y</Font> - 1/3<Font italic="true">r</Font><Font encoding="UTF-8"> se obt\303\251m a <Font italic="true">forma reduzida da c\303\272bica</Font></Font>, </Text-field>
<Text-field style="Text" layout="Normal"><Equation executable="false" style="2D Math" input-equation="" display="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">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</Equation>, 
<Font encoding="UTF-8">no qual o termo quadr\303\241tico n\303\243o aparece. Aqui </Font></Text-field>
<Text-field style="Text" layout="Normal"><Equation executable="false" style="2D Math" input-equation="" display="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">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</Equation> </Text-field>
<Text-field style="Text" layout="Normal"><Equation executable="false" style="2D Math" input-equation="" display="LUklbXJvd0c2Iy9JK21vZHVsZW5hbWVHNiJJLFR5cGVzZXR0aW5nR0koX3N5c2xpYkdGJzYmLUkjbWlHRiQ2I1EhRictRiM2Jy1GLDYlUSJxRicvJSdpdGFsaWNHUSV0cnVlRicvJSxtYXRodmFyaWFudEdRJ2l0YWxpY0YnLUkjbW9HRiQ2LVEiPUYnL0Y4USdub3JtYWxGJy8lJmZlbmNlR1EmZmFsc2VGJy8lKnNlcGFyYXRvckdGQi8lKXN0cmV0Y2h5R0ZCLyUqc3ltbWV0cmljR0ZCLyUobGFyZ2VvcEdGQi8lLm1vdmFibGVsaW1pdHNHRkIvJSdhY2NlbnRHRkIvJSdsc3BhY2VHUSwwLjI3Nzc3NzhlbUYnLyUncnNwYWNlR0ZRLUYjNilGKy1JJm1mcmFjR0YkNigtRiM2Jy1JI21uR0YkNiRRIjJGJ0Y+LUY7Ni1RMSZJbnZpc2libGVUaW1lcztGJ0Y+RkBGQ0ZFRkdGSUZLRk1GT0ZSLUYjNiZGKy1JJW1zdXBHRiQ2JS1GLDYlUSJyRidGNEY3LUZmbjYkUSIzRidGPi8lMXN1cGVyc2NyaXB0c2hpZnRHUSIwRidGK0Y+RitGPi1GIzYkLUZmbjYkUSMyN0YnRj5GPi8lLmxpbmV0aGlja25lc3NHUSIxRicvJStkZW5vbWFsaWduR1EnY2VudGVyRicvJSludW1hbGlnbkdGZHAvJSliZXZlbGxlZEdGQi1GOzYtUSgmbWludXM7RidGPkZARkNGRUZHRklGS0ZNL0ZQUSYwLjBlbUYnL0ZTRl1xLUZXNigtRiM2JC1GLDYlUSNzckYnRjRGN0Y+LUYjNiRGZG9GPkZfcEZicEZlcEZncC1GOzYtUSIrRidGPkZARkNGRUZHRklGS0ZNL0ZQUSwwLjIyMjIyMjJlbUYnL0ZTRlxyLUYsNiVRInRGJ0Y0RjdGPkYrRj5GK0Y+">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</Equation>. 
O <Hyperlink linktarget="Dictionary:Definition/discriminant" hyperlink="true"><Font style="Dictionary Hyperlink" family="Times New Roman">discriminante</Font></Hyperlink><Font encoding="UTF-8"> da c\303\272bica \303\251 </Font></Text-field>
<Text-field style="2D Math" layout="Normal" alignment="centred"><Equation executable="false" style="2D Math" input-equation="" display="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">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</Equation></Text-field>
<Text-field style="Text" layout="Normal"><Font encoding="UTF-8"> ent\303\243o existem ra\303\255zes repetidas se e somente se  </Font><Font family="MaplePi">D</Font><Font superscript="true">2</Font> =  0; quando <Font family="MaplePi">D</Font><Font superscript="true">2</Font><Font encoding="UTF-8"> \303\251 positivo a \303\272nica solu\303\247\303\243o real para a c\303\272bica reduzida \303\251 </Font></Text-field>
<Text-field style="Text" layout="Normal"><Equation executable="false" style="2D Math" input-equation="" display="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">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</Equation>, 
e quando  <Font family="MaplePi">D</Font><Font superscript="true">2</Font><Font encoding="UTF-8"> \303\251 negativo existem tr\303\252s solu\303\247\303\265es reais melhor expressas de forma trigonom\303\251trica. Existe uma solu\303\247\303\243o correspondente para a equa\303\247\303\243o </Font><Hyperlink linktarget="Dictionary:Definition/quartic" hyperlink="true"><Font style="Dictionary Hyperlink" family="Times New Roman" encoding="UTF-8">qu\303\241rtica</Font></Hyperlink><Font encoding="UTF-8"> geral, associada com os nomes de Ferrari e Cardano, que procede pela produ\303\247\303\243o de uma <Font italic="true">equa\303\247\303\243o c\303\272bica resolvente </Font>para a qual a f\303\263rmula anterior se aplica; o discriminante da qu\303\241rtica \303\251 tamb\303\251m o discriminante da </Font><Hyperlink linktarget="Dictionary:Definition/auxiliaryequation" hyperlink="true"><Font style="Dictionary Hyperlink" family="Times New Roman" encoding="UTF-8">equa\303\247\303\243o auxiliar</Font></Hyperlink><Font encoding="UTF-8"> da c\303\272bica. (Nomeado ap\303\263s o matem\303\241tico e f\303\255sico Italiano  </Font><Font italic="true">Girolamo Cardano</Font> (1501-76), que, possuindo having declined several posts of court physician, made the most significant contribution of his generation to both medicine and mathematics. He wrote an early work on probability, solved both the cubic (building on the work of Tartaglia) and (with his servant Ferrari) the quartic, was the first to identify typhus, and wrote popular works on science, philosophy, and astrology. His son was executed in 1560, and he himself was imprisoned for heresy in 1570 and deprived of his post. Although forbidden to publish, he completed his autobiography shortly before his death.)</Text-field>
</Worksheet>