Question

V= raiz quadrada

V8.V30=?

Answer 1

Propriedade do radical aritmético

$\sqrt[n]{a.b}=\sqrt[n]{a}.\sqrt[n]{b}\,com\,a, b\in\mathbb{R_{+}},n\in\mathbb{N} \,e\,n>1$

$\sqrt{8}.\sqrt{30}=\sqrt{{2}^{3}}.\sqrt{2.15}\\\sqrt{{2}^{4}.15}={2}^{2}\sqrt{15}=4\sqrt{15}$