$(5 - x) (6 - 5 x) (2 - x)$

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Solution

$(5 - x) (6 - 5 x) (2 - x) = [5 (6 - 5 x) - x (6 - 5 x)] (2 - x) = [30 - 25 x - 6 x + 5 x^{2}] (2 - x) = (30 - 31 x + 5 x^{2}) (2 - x) = 2 (30 - 31 x + 5 x^{2}) - x (30 - 31 x + 5 x^{2}) = 60 - 62 x + 10 x^{2} - 30 x + 31 x^{2} - 5 x^{3} = 60 - 62 x - 30 x + 10 x^{2} + 31 x^{2} - 5 x^{3} = 60 - 92 x + 41 x^{2} - 5 x^{3}$

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(5-x)(6-5x)(2-x)

Pzz answer me

\frac{5 - 2 x}{3} \leq \frac{x}{6} - 5

x

x + \frac{1}{x} = 5, t h e n x^{6} + \frac{1}{x^{6}}

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