Asked by Gary

(81a^2/2a^2-4a+2) * (2a-2/9a)

Please help. Thanks
Answered by Reiny
factor it to look like

81a^2/(2(a+1)(a-1)) * 2(a-1)/(9a)

then cancel to leave you with
9a/(a-1) , a ≠ 1
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