[tex](x - 5) \times (x { }^ {2} + 5x + 25) = x {}^{3} + 6x \\ x = - \frac{1}{2} [/tex]
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[tex](x - 5) \times (x { }^ {2} + 5x + 25) = x {}^{3} + 6x \\ x = - \frac{1}{2} [/tex]
5х^2-25x-125-х^3+6x=6x
Якщо ×=½, то
6x = 6 • 1/2 = 3