Question

HELP ME PLEASE!!!!

Answer 1

`54=9\cdot6\\24=4\cdot6\\\\3√(54)-4√(24)=3√(9\cdot6)-4√(4\cdot6)=3\cdot\sqrt9\cdot\sqrt6-4\cdot\sqrt4\cdot\sqrt6\\\\=3\cdot3\cdot\sqrt6-4\cdot2\cdot\sqrt6=9\sqrt6-8\sqrt6=1\sqrt6=\sqrt6\\\\\text{Answer:}\ \sqrt6\\\\\text{Used:}\ √(a\cdot b)=√(a)\cdot√(b)`