Question

What is the difference
A
B
C
D

Answer 1

D.
`(x-1)/(x^2+3x+2)}`

Explanation:

The given expression is;

`(x)/(x^2+3x+2)-(1)/((x+2)(x+1))`

This is the same as;

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

The denominators are the same.

Subtract the numerators and write one denominator;

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

Rewrite to get;

`(x-1)/(x^2+3x+2)}`