Question

СРОЧНО!!! ДАМ 20 БАЛЛОВ!!

Answer 1

Ответ:

Объяснение:

(2a - 1)^2 / (6a - 6) + (a - 2)^2 / (6 - 6a) = (4a^2 - 4a + 1) / (6a - 6) - (a^2 - 4a + 4) / (6a - 6) = (3a^2 - 3) / (6a - 6) = (a^2 - 1) / (2a - 2)

(16 - 7x) / (x - 4)^2 - (x - x^2) / (4 - x)^2 = (16 - 7x) / (x - 4)^2 - (x - x^2) / (x - 4)^2 = (x^2 - 8x + 16) / (x - 4)^2 = (x - 4)^2 / (x - 4)^2 = 1