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(x^3y^-2)^2/(x^5y^3)^-3

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1 Answer

(x3y-2)2/(x5y3)-3
 
Remembering that x-a = 1/xa, we can re-write the expression as:
 
(x3)2(x5y3)3/(y2)2
 
Now (xa)b = xab:
 
x6x15y9/y4
 
Since xaxb = xa+b  and xa/xb = xa-b, we can combine terms with the same base and simplify:
 
x6+15y9-4
 
x21y5