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P(x) = x - 3 - wielomian 1-go stopnia
a)
W(x) + P(x) = 2x³ + x² + 3 + x - 3 = 2x³ + x² + x
b)
W(x) * P(x) = (2x³ + x² + 3)(x - 3) = 2x⁴ + x³ + 3x - 6x³ - 3x² - 9 =
= 2x⁴ - 5x³ - 3x² + 3x - 9
c)
W(x) - P(x) = 2x³ + x² + 3 - (x - 3) = 2x³ + x² + 3 - x + 3 = 2x³ + x² - x + 6