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# GCSE question(exponents) watch

1. Close it.
"thegodofgod" kindly helped me solve them both!
2. (Original post by high)
Hey guys I'm having difficulty on answering these questions so I was just wandering how do you work them out?

(squareroot7)^5 = 7^n
what is N?

and

(cuberoot2)^11=2^n
What is N?

If you could explain them as well I'd greatly appreciate it!
Sorry about the words but for some reason num signs don't work on this forum...
Use your calculator to try 9 to the power a half. See what happens.

3. (Original post by high)
Hey guys I'm having difficulty on answering these questions so I was just wandering how do you work them out?

(squareroot7)^5 = 7^n
what is N?

and

(cuberoot2)^11=2^n
What is N?

If you could explain them as well I'd greatly appreciate it!
Sorry about the words but for some reason num signs don't work on this forum...
(71/2)5 = 7n

71/2 x 5 = 7n

75/2 = 7n

n = 5/2.

Same principle for 2nd question.
4. (Original post by thegodofgod)
(71/2)5 = 7n

71/2 x 5 = 7n

75/2 = 7n

n = 5/2.

Same principle for 2nd question.

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Updated: April 3, 2011
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