X^2+x/x^2. a+2b/a^2-4b^2. 2x/x-a-2a/x+a. 2-ab/2a+ab+2b/2+b. c-c^2/c+1

Question

X^2+x/x^2. a+2b/a^2-4b^2. 2x/x-a-2a/x+a. 2-ab/2a+ab+2b/2+b. c-c^2/c+1

Answer 1

х+1/х

1/а-2b

2

с(1-с)/с+1