medal and fan please help me!!!!!!!!! I really need help, I have done this lesson, but that was useless, I have no clue how to do this, I'm so confused!!!!! Please help me out!!! :)

Question

horsegirl27 · Answer

attachment

horsegirl27 · Answer

I do not know how to do this at all :/

misty1212 · Answer

HI!!!

misty1212 · Answer

write both in exponential notation

misty1212 · Answer

$$\sqrt8=8^{\frac{1}{2}}$$and 
$$\sqrt[5]{8}=8^{\frac{1}{5}}$$

misty1212 · Answer

you have 
$$\huge \frac{8^{\frac{1}{2}}}{8^{\frac{1}{5}}}$$

horsegirl27 · Answer

hi!! Ok

misty1212 · Answer

then use the property of exponents to get 
$$\huge 8^{\frac{1}{2}-\frac{1}{5}}$$

horsegirl27 · Answer

Hmm
could u refresh me on the property of exponents please?

misty1212 · Answer

so your real job is to do the subtraction 
$$\huge \frac{1}{2}-\frac{1}{5}$$

misty1212 · Answer

that property is when you divide, you subtract the exponents
sometimes written as 
$$\huge \frac{b^m}{b^n}=b^{m-n}$$

horsegirl27 · Answer

oh ok, lol I knew that XD

horsegirl27 · Answer

So that would be 3/10

horsegirl27 · Answer

Therefore my answer is C, right?

horsegirl27 · Answer

@misty1212