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# Exam Question watch

1. Heres a question that I had in the most recent mock we done and i'm not too sure how to solve it, additionally I cannot just ask my teacher as it's half term. If someone could tell me the answer along with the steps that would be great,

Question:
Simplify (2/sqrt(2))^3
Give your answer in the form a*sqrt(2) where a is an integer.

I couldn't understand how I would get the fraction into the specified form, I feel as though there is some integral concept that I am not aware of.

2. (Original post by Abu Bakr al Bag)
Heres a question that I had in the most recent mock we done and i'm not too sure how to solve it, additionally I cannot just ask my teacher as it's half term. If someone could tell me the answer along with the steps that would be great,

Question:
Simplify (2/sqrt(2))^3
Give your answer in the form a*sqrt(2) where a is an integer.

I couldn't understand how I would get the fraction into the specified form, I feel as though there is some integral concept that I am not aware of.

What is in index form?

Now, what is in index form? Raise this to the power of 3 and can you see what to do from here?

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Updated: February 11, 2017
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