Question 636617
1	+	1
--
a	
-------------------	     
1	-	1
--
2a		

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= [(1+a)/a]/[(1-2a)/2a]
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Invert the denominator and multiply:
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= [(1+a)/a] times [(2a)/(1-2a)]
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Cancel the common "a" factor to get:
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= [(1+a)/1] times [(2)/(1-2a)]
----
= (2+2a)/(1-2a)
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Cheers,
Stan H.
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