1. ## Integrate 3 e^x

$\int 3e^x dx$

2. Originally Posted by Minino777
$\int 3e^x dx$
What do you know about the integrals of exponential functions

3. Some rules for you to use...

$\int e^x dx = e^x + C$ where $C$ is a constant.

$\int a f(x) dx = a \int f(x) dx$ where $a$ is a constant and $f(x)$ is some function.

4. ## Constant rule?

Is this the way to start:
$\int 3e^x dx= 3e^x + C$

5. Although it is the correct answer, you should start by taking the constant 3 out of the integral sign.