Помогите:,,,,,,,12 баллов

Question

Помогите:,,,,,,,12 баллов

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Answer 1

ax–2x–7a+14 x(a–2)–7(а–2)
--------------------- = ---------------------- =
4a–8–ax+2x 4(а–2)–х(а–2)

(а–2)(х–7) х–7
= --------------- = -------
(а–2)(4–х) 4–х