Question

calcule a adição algébrica ³√81 + 2³√24 - 3 ³√375

Answer 1

³V81  =  ³V3³  * ³V3¹   = 3  (³V3)
2.³V24 =  ³ V(2³ .24)  = ³V8*24  = ³V192 = ³V2³ * ³V2³ * ³V3 = 2 * 2 (* ³V3 )= 4 (³V3)
3. ³V375 = 3. ³V3¹ * ³V5³   = 3 * 5 * ³V3  = 15 ( ³V3)
3 (³V3) + 4 (³V3 ) - 15(³V3)  = -8 (³V3)