Posted by Yoyo on Wednesday, November 13, 2013 at 1:59pm.
Square root 'a'
16^2 = 2?

Maths  Ms. Sue, Wednesday, November 13, 2013 at 2:01pm
http://www.google.com/search?q=16%5E2&rlz=1C1AVSX_enUS414US423&oq=16%5E2&aqs=chrome..69i57j0.1338j0j8&sourceid=chrome&espv=210&es_sm=122&ie=UTF8

Maths  Yoyo, Wednesday, November 13, 2013 at 2:06pm
I need it 2 to the power of ? =16^2

Maths  Steve, Wednesday, November 13, 2013 at 3:15pm
16 = 2^4
so,
16^2 = (2^4)^2 = 2^8
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