Question

$\sqrt{2}*(- \sqrt{3}+ \sqrt{5} )+2 \sqrt{3} *( \sqrt{2} -2 \sqrt{5} )+3 \sqrt{5} *(3 \sqrt{2}- \sqrt{3} )=?$

Answer 1

√2*(-√3+√5)+2√3*(√2-2√5)+3√5*(3√2-√3)=-√6+√10+2√6-4√15+9√10-3√15=3√6+10√10-7√15