Из равенства найдите значение x: (−²/₅)² ÷ (−²/₅)³ + x = 0

  1. −⁵/₂
  2. −1
  3. 1
  4. 2 ¹/₂

📝 Detailed explanation

При делении степеней с одинаковыми основаниями показатели вычитаются: (−²/₅)²⁻³ = (−²/₅)⁻¹ = −⁵/₂. Подставим в уравнение: −⁵/₂ + x = 0 ⇒ x = ⁵/₂ = 2 ¹/₂.
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