# Math Help - [SOLVED] Integrate

1. ## [SOLVED] Integrate

Integrate between 2 and 3 the fractions -2 / (2x+1) + 1 / (x-1)

thanks

2. Originally Posted by gracey
Integrate between 2 and 3 the fractions -2 / (2x+1) + 1 / (x-1)

thanks
Use the standard result $\int \frac{1}{ax + b} \, dx = \frac{1}{a} \, \ln |ax + b| + C$

3. Originally Posted by mr fantastic
Use the standard result $\int \frac{1}{ax + b} \, dx = \frac{1}{a} \, \ln |ax + b| + C$

Just want to add, if you have trouble remembering this standard result (as I always do), do a u-substitution and use the easier standard result

$\int \frac{1}{x} \, dx = \ln |x| + C$.

4. thank you both so much