Question

9. Introduza o fator externo no radical:
a) x³√x
b)3√5
c)2a√a​

Answer 1

9. Introduza o fator externo no radical:

a) $x\sqrt[3]{x}=\sqrt[3]{x.x^{3}}=\sqrt[3]{x^{4}}$

b) $3\sqrt{5}=\sqrt{5.3^{2}}=\sqrt{5.9}=\sqrt{45}$

c) $2a\sqrt{a}=\sqrt{a.(2a)^{2} } =\sqrt{a.4a^{2} } =\sqrt{4a^{5} }$