а) (7/a-2)(5a-10) = 35-70a/(a-2)б) (7/a-2)(6-3a) = 42-21a/(a-2)в) (7/a-2)(a²-2a) = 7a-14/(a-2)г) (7/a-2)(a²-4) = 7a-14/(a-2)
а) (7/a-2)(5a-10) = 35-70a/(a-2)
б) (7/a-2)(6-3a) = 42-21a/(a-2)
в) (7/a-2)(a²-2a) = 7a-14/(a-2)
г) (7/a-2)(a²-4) = 7a-14/(a-2)