25. B = (f1, f2, f3) is a basis for R2[x] where fi = 1+ x + 2x², f2 = 1 + 2x + 5x², f3 = 2 + x + 2x². 3 If g € R2[x] and [g]B then g = a) 3 – 2x + x2 b) Зх — 2л2 с) 3 — 2х d) 3 – 2x2 e) 3 – x2

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