Question

(1/3)x^(-2/3)+(1/5)x^(-4/5)=

Answer 1

it's okay, thank you so much!

one more question, to mulitply (1/2)x^(-1/2) do I need a common denom. for both parts of the problem as well?

Answer 2

You can re-write it as x^(-1/2)/2

Then you can re-write it as 1/2(x^(1/2))

Something to the power 1/2 is just the square root of something.

So:
1/2sqrt(x)

Answer 3

great, thank you :)

Answer 4

Welcome :-)

Answer 5

Oh boy did I screw up on the original problem. I dunno what I was thinking, but you can't add exponents when you're adding two terms together. You only add them when you're multiplying.

I steered you wrong and I am very sorry for that :-(