Question

WILL GIVE BRAINLIST!!

Answer 1

Simplify the radical 75 first:

$\sqrt{75}$

5$\sqrt{3}$

Next simplify the radical 12:

$\sqrt{12}$

2$\sqrt{3}$

Now that both radicals have the same number under the radical you can subtract the number in front normally

$5\sqrt{3} -2\sqrt{3}$

$3\sqrt{3}$

Hope this helped!