Answer
$\sqrt{14}+ \sqrt{20}$.
Work Step by Step
The given expression is
$=\sqrt2(\sqrt7+\sqrt{10})$
By using the distributive property:
$=\sqrt2\cdot \sqrt7+\sqrt2\cdot \sqrt{10}$
Apply product rule.
$=\sqrt{2\cdot 7}+ \sqrt{2\cdot10}$
Multiply.
$=\sqrt{14}+ \sqrt{20}$.
