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a fost răspuns

efectuati
a (2 - radical3) la puterea a 3
b (radical 2-radical 3) la puterea a 3
c (3radical5+1) la puterea a 3
d (2+radical 3) la puterea a 3

Răspuns :

Renatemambouko
folosim formula
(a -b)³=a²-3a²b+3ab²-b³

a (2 -√3)³ =8-12√3+18-3√3=26-15√3

b (√2-√3)³=2√2-6√3+9√2-3√3=11√2-9√3


folosim formula
(a +b)³=a²+3a²b+3ab²+b³
c (3√5+1)³=135√5+135+9√5+1=144√5+136

d (2+√3)³  =8+12√3+18+3√3=26+15√3