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| Question 578747:  ^4 sq rt of 256x^16 y^28
 Answer by dfrazzetto(283)
      (Show Source): 
You can put this solution on YOUR website! ^4 sq rt of 256x^16 y^28 I'm guessing this means you want the 4th root? (square root of the square root)?
 If so:
 We know (or can use a calculator) that the 4th root of 256 is 4, since 4^4 = 4*4*4*4 = 64*64 = 256
 To take the 4th root of exponential variables, divide the exponent by 4:
 x^16 becomes x^4, and y^28 becomes y^7
 Putting it all together:
 4x^4y^7
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