Question

Корень5*(3корень5+5корень3)

Answer 1

$\sqrt{5}$ * ( 3$\sqrt{5}$ + 5$\sqrt{3}$)= $\sqrt{5}$*$\sqrt{5}$((3*3*$\sqrt{5}$*$\sqrt{5}$+5*5*$\sqrt{3}$*$\sqrt{3}$)=5*(9*5+25*3)=300