# Thread: Evaluating an Expression

1. ## Evaluating an Expression

I apologize for the lack of description in the title. I am not particularly sure how to describe this problem

Evaluate these expression without using a calculator.

A) -125^1/3
B) 81^0.25
C) 27 to the square root of 3

If someone could walk me through how to do these, I would greatly appreciate it.

2. $a^{\frac{m}{n}} = \sqrt[m]{a^{n}} = \left(\sqrt[m]{a}\right)$

For example, $-125^{\frac{1}{3}} = -\sqrt[3]{125^{1}} = -5$, assuming that you know $5^{3} = 125$

And are you sure you posted the last question correctly. I doubt you're expected to find $27^{\sqrt{3}}$ without a calculator xD.

3. No, I did not, I intended the square root symbol to be over the 27, if you understand me. I have not yet figured the math tags out.