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W(x) = -x⁴ - 2x³ + x² - 3x + 1
W(0) = 1
W(-1) = -1 + 2 +1 + 3 + 1 = 7
B
W(x) = -x⁴ + 2x³ - x² + 3x + 2
W(0) = 2
W(-1) = -1 - 2 - 1 - 3 + 2 = 5
C
W(x) = -x⁴ + 2x³ - x² - 3x + 1
W(0) = 1
W(-1) = -1 - 2 - 1 + 3 + 1 = 0
Odpowiedź C