Question

Answer is D)-4 but please explain how to get it

Answer 1

D

Explanation:

We could plug x into the equation but to make it easier we simplify it first

`(1)/(x) -(1)/(x+1)`

`-(1)/(x+1) + (1)/(x)`

`-(1)/(2x+1)`

x = -1/2

-2-2 = -4