1. ## Integral

Hi.
Question:
(x-1)(x+1) this is an integral question.
I know how to integrate but I am not sure what to do when you have two pairs of brackets. I know how to do a question like (2x+1)^2. Can some one please help me get a start.
Thanks

2. You're right to think there are strategies for dealing with a product, but you should also have a quick look to see if it doesn't split into a sum of easy ones... i.e. multiply out

3. thanks I'll try

4. Originally Posted by Awsom Guy
Hi.
Question:
(x-1)(x+1) this is an integral question.
I know how to integrate but I am not sure what to do when you have two pairs of brackets. I know how to do a question like (2x+1)^2. Can some one please help me get a start.
Thanks
You should find that your expression expands to $x^2 - 1$. Integrate that with the polynomial rule.

In integration, a good tip is to always see if, even a complicated-looking function, can be expanded to became a bunch of simple terms.