Question

$4 \sqrt{5} (3 \sqrt{5} + 8 \sqrt{2} )$how do u do this

Answer 1

we have

$4\sqrt{5}(3\sqrt{5}+8\sqrt{2})$

Apply distributive property

$4\sqrt{5}(3\sqrt{5})+4\sqrt[]{5}(8\sqrt{2})$$12\sqrt[]{25}+32\sqrt[]{10}$

simplify

$\begin{gathered} 12(5)+32\sqrt[]{10} \\ 60+32\sqrt[]{10} \end{gathered}$