(9a平方+6a+1)/(9a平方-1)化简

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(9a平方+6a+1)/(9a平方-1)化简(9a平方+6a+1)/(9a平方-1)化简(9a平方+6a+1)/(9a平方-1)化简(9a平方+6a+1)/(9a平方-1)=(3a+1)²/

(9a平方+6a+1)/(9a平方-1)化简
(9a平方+6a+1)/(9a平方-1)化简

(9a平方+6a+1)/(9a平方-1)化简
(9a平方+6a+1)/(9a平方-1)
=(3a+1)²/(3a+1)(3a-1)
=(3a+1)/(3a-1)