# Simple Integration

1. Sep 16, 2008

### winston2020

Hi, I've got to solve for: $$\int\stackrel{3}{1}$$(4x2+2)dx

This is what I've done:

= [ (4/3)x3 + 2x ]$$\stackrel{3}{1}$$
= [ (4/3)(3)3 + 2(3) ] - [ (4/3)(1)3 + 2(1) ]
then I solved...

= 44/3

Is that correct at all?

2. Sep 16, 2008

### sutupidmath

looks good to me! If you have done the arithmetic correctly of course!

3. Sep 16, 2008

### winston2020

Awesome! My morale just sky rocketed...

By the way, sorry for the bad latex graphic thing... I'm having a hard time figuring that out.

4. Sep 16, 2008

### sutupidmath

$$\int_{1}^3 (4x^2+2)dx$$

5. Sep 16, 2008

### winston2020

Cool thanks. Could you check out this thread again?

6. Sep 17, 2008