Question

under root 3 is multiplied by under root 15-(minus) under root 60

Answer 1

Have a great day ahead

Answer 2

$\sqrt{3}( \sqrt{15}- \sqrt{60} )$

= $\sqrt{45} - \sqrt{180}$

= $3 \sqrt{5} -6 \sqrt{5}$

= $-3 \sqrt{5}$