[tex](2 \sqrt{5} ) {}^{3} = {2}^{3} \sqrt{5} {}^{3} = 8 \times 5 \sqrt{5} = \\ = 40 \sqrt{5} [/tex]
Răspuns:
(2√5)³ = 2³•√5³ = 8•5√5 = 40√5
EVERGREEN
