Question

introdusa os fatores do radicando:
a)2√5
b)2³√3
c)a/b√a

Answer 1

$<var>a)2\sqrt5=\sqrt{2^2\cdot5}=\sqrt{4\cdot5}=\sqrt{20}</var>$

 

 

$<var>b)2\sqrt[3]{3} = \sqrt[3] {2^3\cdot3}=\sqrt[3]{8\cdot3}=\sqrt[3]{24}</var>$ 

 

$<var>\frac{a}{b}\sqrt a=\sqrt{(\frac{a}{b})^2\cdot a}=\sqrt{\frac{a^2}{b^2}}\cdot a=\sqrt{\frac{a^3}{b^2}}</var>$