Question 1

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Calcula, si s'escau les dues solucions de: begin bold style 5 times x squared minus 2 times x minus 5 equals 0 end style



Format de la resposta: begin mathsize 12px style open curly brackets fraction numerator negative 3 minus square root of 15 over denominator 4 end fraction comma fraction numerator negative 3 plus square root of 15 over denominator 4 end fraction close curly brackets end styleamb denominador positiu, i l'arrel simplificada.

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