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(x2 y-1)(Simplify answer should contain only positive exponents)
 

 Sep 27, 2017
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Power to a power you times the powers

 

(x2y-1)2  =  x2*2y-1*2  = x4y-2

 

​When a value is to a negative power it is the same as 1 / that number to the positive power

 

x4y-2 = x4(1/y2) = x4 / y2

 Sep 27, 2017

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