Mathematics, 08.02.2021 05:00 sotocindy023

I need to prove the following statement by proof by contrapositive or proof by contradiction: Suppose x ∈ R. If x^ 5 − 4x^ 4 + 3x^ 3 − x ^2 + 3x − 4 ≥ 0 then x ≥ 0.

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