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2009-05-29T16:00:33+02:00
5 ³√32 + 5 ³√108 10∛4+15∛4 25³√4
--------------------------- = --------------- = ---------- = 5
5 ³√4 5 ³√4 5 ³√4



(7⁹: 49 ⁻⁵)² :7⁻¹⁰=(7⁹: (7²)⁻⁵)² :7⁻¹⁰=(7⁹: 7 ⁻¹⁰)² :7⁻¹⁰=(7¹⁹)²:7⁻¹⁰=
7³⁸:7⁻¹⁰=7⁴⁸