Объяснение:
2x²/(x²- 4) - 2x/(x + 2) =
2x²/(x-2)(x+2) - 2x/(x+2) =
(2x² - 2x×(x-2)) / (x+2)(x-2) =
(2x² - 2x² + 4x) / (x+2)(x-2) =
4x / (x+2)(x-2) =
4x / x² - 4
Объяснение:
2x²/(x²- 4) - 2x/(x + 2) =
2x²/(x-2)(x+2) - 2x/(x+2) =
(2x² - 2x×(x-2)) / (x+2)(x-2) =
(2x² - 2x² + 4x) / (x+2)(x-2) =
4x / (x+2)(x-2) =
4x / x² - 4