1. Dec 9, 2007

### rayray19

1. The problem statement, all variables and given/known data

the antiderivative of (-4x)/(x^2 + 3) dx

2. Relevant equations

3. The attempt at a solution

i got -2+c is that right at all, if not can somebody help me
1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution

2. Dec 9, 2007

### varygoode

-2 + c

Then no, not even in the ballpark.

Please explain what you did to arrive there.

Note "antiderivative" is the same as "indefinite integral".

To check your answer, take the derivative. If you arrive at the question, you have the right answer.

(Unless of course you had a definite integral, in which case -2 + c could be correct after evaluating the integral on its parameters.)

3. Dec 9, 2007

### Defennder

Here's a hint to get you going:

There's a special technique of integration if you want to find integral of f'(x)/f(x). Note that you can easily express the integral in that form.

4. Dec 9, 2007

### cristo

Staff Emeritus