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## AriPotta 2 years ago Simplify...

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1. maria74123

Wait its kinda hard to read....is -2/3 the exponent???

2. abb0t

$27^{-\frac{ 2 }{ 3 }} = \frac{ 1 }{ \sqrt[3]{27^2} }$

3. abb0t

magic? $\sqrt{a}=a^\frac{ 1 }{ 2 }$ similarly: $\sqrt[100]{a}= a^{100}$ and: $a^{-1} = \frac{ 1 }{ a^1 }= \frac{ 1 }{ a }$

4. abb0t

sorry, the second one should be: $\sqrt[100]{a} = a^\frac{ 1 }{ 100 }$

5. abb0t

to be fully clear: $\sqrt[x]{a^y} = a^\frac{ y }{ x }$

6. Mertsj

Just remember: the bottom number is the root, the top number is the power. So what is the third root of 27?

7. Mertsj

Yes. The top number is the power which is 2 so what is 3 to the second power?

8. Mertsj

And there is your answer.

9. Mertsj

I can't see very well. Is there a negative sign in front of the 2/3?

10. Mertsj

If there it, it is 1/9

11. AriPotta

mmk. thanks :)

12. Mertsj

0k. Then it is 1/9. yw

13. abb0t

stepped out for a minute, sorry. but i see you got the answer. Good job.

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