Berechne \( f(0.64) \approx (0.64)^3 - 8(0.64)^2 + 9(0.64) - 18 \approx 0.26 - 3.26 + 5.76 - 18 \approx -15.24 < 0 \),

Wed, 06 May 2026 13:22:52 +0000

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