Question

$(2 + \sqrt{7} ). \sqrt{3} =$​

Answer 1

Respuesta:

$\displaystyle{\rightarrow 2\sqrt3 +\sqrt{21}$

Explicación paso a paso:

$\displaystyle{(2+\sqrt7).\sqrt3}\\\\\\\displaystyle{\rightarrow \sqrt3(2+\sqrt7)}\\\\\\\displaystyle{\rightarrow \sqrt3\times2+\sqrt 3 \times \sqrt7}\\\\\\\displaystyle{\rightarrow 2\sqrt3 +\sqrt{7\times3}}\\\\\\\displaystyle{\rightarrow 2\sqrt3 +\sqrt{21}$