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<Text-field style="Heading 1" layout="Normal"><Font encoding="UTF-8">solu\303\247\303\243o por radicais,</Font></Text-field>
<Text-field style="Text" layout="Normal"><Font italic="true">n.</Font><Font encoding="UTF-8"> a possibilidade de se obter uma express\303\243o para as ra\303\255zes de uma equa\303\247\303\243o polinomial envolvendo apenas opera\303\247\303\265es racionais e radicais, ou, mais precisamente, como o produto final de uma </Font><Font italic="true">torre de radicais</Font><Font encoding="UTF-8">: uma sequ\303\252ncia finita de n\303\272meros, cada um dos quais \303\251 um radical de um polin\303\264mio nos membros anteriores da sequ\303\252ncia. Isto \303\251 poss\303\255vel para todas as equa\303\247\303\265es de grau menor que 5, mas n\303\243o em geral para polin\303\264mios </Font><Hyperlink linktarget="Dictionary:Definition/quintic" hyperlink="true"><Font style="Dictionary Hyperlink" family="Times New Roman" encoding="UTF-8">qu\303\255nticos</Font></Hyperlink><Font encoding="UTF-8"> ou de grau mais alto, como uma consequ\303\252ncia dos resultados de Abel e Galois. Veja </Font><Hyperlink linktarget="Dictionary:Definition/quadraticequation" hyperlink="true"><Font style="Dictionary Hyperlink" family="Times New Roman" encoding="UTF-8">equa\303\247\303\243o quadr\303\241tica</Font></Hyperlink>, <Hyperlink linktarget="Dictionary:Definition/Cardanosformula" hyperlink="true"><Font style="Dictionary Hyperlink" family="Times New Roman" encoding="UTF-8">f\303\263rmula de Cardano</Font></Hyperlink>, <Hyperlink linktarget="Dictionary:Definition/Galoistheory" hyperlink="true"><Font style="Dictionary Hyperlink" family="Times New Roman">teoria de Galois</Font></Hyperlink>.</Text-field>
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