⁵√3√4 = ⁵√6 = ¹⁵√6³ = ¹⁵√216
³√2⁵√2 = ¹⁵√2⁶ = ¹⁵√64
³√2 =¹⁵√2⁵ = ¹⁵√32
¹⁵√32<¹⁵√64 <¹⁵√216<br> ³√2 <³√2⁵√2<⁵√3√4 <br>
(2⁶√a -⁶√b)² + 4¹²√a⁷b⁸ : ¹²√a⁵b⁶ =
= (2a^(1/6) - b^(1/6))² + 4a^(7/12)b^(8/12)a^(-5/12)b^(-6/12) =
= 4a^(1/3) - 4a^(1/6)b^(1/6) + b^(1/3) + 4a^(1/6)b^(1/6) = 4a^(1/3) + b^(1/3) =
= 4³√a+³√b