5x 2 )( 25x 2 10x 4 July 8, 2019 16 32 64 128 (- 5x 3 25x 2 10x 40 )/( 2x 2 2x 24 2x 5 4/(x ^ 2 - 10x + 25) - 1/(x + 5) = 10/(x ^ 2 - 25)