rozłóż wielomian na czynniki x^3 - x^2 - 4x +4
x³ - x² - 4x +4 = x²(x - 1) - 4(x - 1) = (x - 1)(x² - 4) = (x - 1)(x - 2)(x + 2)
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x³ - x² - 4x +4 = x²(x - 1) - 4(x - 1) = (x - 1)(x² - 4) = (x - 1)(x - 2)(x + 2)