÷ 



Write both terms  as 



÷



Write the 's inside the parentheses as 



÷



Get an LCD of  inside the parentheses and

multiply top and bottom of both 's by 



÷



÷



Combine the numerators over the LCD in the parentheses:



÷



Now use this principle on those fractions to negative powers:

                



÷



Square tops and bottoms:



÷



Write the 's as 



÷



Get an LCD of  and multiply the 's

top and bottom by it:



÷



÷



Combine the numerators over the LCD



÷



Invert the second fraction and change division to multiplication:



×



Now the 's cancel



×



 



Now we square  =  = 



And replace in the numerator and denominator











Combine terms in numerator and denominator







Edwin
 

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