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Cum ridic (10√5) la puterea a-3a?

Răspuns :

[tex]( 10\sqrt{5})^3= ( 10\sqrt{5})^2*( 10\sqrt{5})=(100*5)*( 10\sqrt{5})=5000\sqrt{5}[/tex]
Sau asa:

[tex](10\sqrt5)^3=10^3\cdot\sqrt5^3=1000\cdot(\sqrt5)^2\cdot\sqrt5=1000\cdot5\cdot\sqrt5=5000\sqrt5[/tex]