simplify 4 x (81)—1/2 x (81)1/2 + (81)3/2
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4(81)-1/2(81)1/2+(81)3/2
324-81/4+243/2
take l. c m of 4 and 2
1296/4-81/4+486/4
1701/4
then calculate u find ur answer
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