Алгебра 10 класс ______________
(8а)^1/4•9•(12а^5):(3•(6а^2)^1/4= (8а•12а^5)^1/4*9:3•(6а^2)^1/4= 3•((8•12•а^6)/(6а^2))^1/4= 3•(16а^4)^1/4=3•2а=6а