## anonymous one year ago Help with the Product Rule. (posting equation below)

1. anonymous

I have to find the derivative of $\sqrt[3]{x}(\sqrt{x}+3)$ but I'm not sure how.

2. Loser66

still need help?

3. anonymous

4. Loser66

what is the product rule for (ab)' ?

5. anonymous

I don't think I've learned the "product rule for (ab)'" yet.

6. Loser66

(a*b)' = a'b + b'a, right?

7. Loser66

your a is $$\sqrt[3]x$$ and your b is $$\sqrt x +3$$

8. Loser66

so, just apply the rule

9. anonymous

Oh okay. That makes things much easier.