X 1 6 2 )( x 1 3 2x 1 6 4 July 8, 2019 16 32 64 128 ( x + 1 ) 2 + ( x − 6 ) 2 = 2 x 2 6/(x ^ 2 - 1) + 2/(1 - x) и 2 - (x + 4)/(x + 1)
