Simplify r^2a / r^2a-3. 2a and 2a-3 are radicals. Can you explain, also? Thanks!

Question

Simplify r^2a / r^2a-3. 2a and 2a-3 are radicals.  Can you explain, also? Thanks!

anonymous · Answer

$$\frac {r^2\sqrt{2a}} {r^2\sqrt{a-3}}$$

Yes?

anonymous · Answer

Where do the radicals come from? Confused.. I don't think I learned this.

anonymous · Answer

Is that the correct equation?

Your post says r^2a but then says 2a is a radical which does not make sense.

anonymous · Answer

$$r^{\sqrt{2a}}$$

Or this?

anonymous · Answer

Oh, I'm sorry. I meant 2a and 2a-3 are exponents. Apologies.

anonymous · Answer

$$\frac{r^{2a}}{ r^{2a-3}}$$

anonymous · Answer

Is that right?

anonymous · Answer

$$r ^{2a} / r ^{2a-3}$$

anonymous · Answer

Yeah, that's right. (:

anonymous · Answer

Apply rule for exponents a^p /a^q = a^(p-q).

anonymous · Answer

So it's r^(2a - 2a-3)?

anonymous · Answer

yes, except it's 2a - (2a-3) which is different...

anonymous · Answer

Oh, yeah. Sorry. Thank you very much. (:

anonymous · Answer

u r welcome, if  u don't like the equation editor, just use brackets to make things clear.