i dont understand what to do when is it like this
(9+16)^1/2
my answer was 7? is that correct???
and what if it is like this
9^1/2 + 16^1/2
i also got 7???
i have more questions...
When dividing you subtract the indices and when multiplying you add the indices (first the indices need to have a common denominator):
For the second one you need to add the indices:
Does that make sense?
Nope. That's fully simplified.
Your answer is correct. as
You should check out the exponent section in this site Practical Algebra Lessons , it explains them really well.