Question 1

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Troba les solucions de l'equació: begin mathsize 12px style begin bold style 49 times x squared plus 4 equals 0 end style end style en el conjunt dels complexos.

Format de la resposta: begin mathsize 12px style open curly brackets negative fraction numerator i times square root of 6 over denominator 2 end fraction comma fraction numerator i times square root of 6 over denominator 2 end fraction close curly brackets space left parenthesis c l a u s right parenthesis end style racionalitzada i simplificada.

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