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7. Illustrate what you wrote above about and roots by factorlag a(x) = 2,6 – 2,5 – 2x4 + 2x2 – 2x – 4 completely over Q. You

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964)= x6x5 – 200 & + 21 2_ 21 - 4 = ach (uc² sc - 2) + 2 (3² x-2) = (2x²x-2)(x+2) = (2x2 2x + x - 2) (set - (²x2) (12_-1) = (all the -1; 2 roosto are ; ti JJz ti Juz n Jr l-i Jur an Gaus lemma - Every real root of a monic polynomial with integer coef

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