Simplify. 3 square root of 10 end root plus 7 square root of 15 end root minus 6 square root of 10 end root minus 4 square root of 15

Question

meowlover17 · Answer

$$3\sqrt{10}+7\sqrt{15}-6\sqrt{10}-4\sqrt{15}$$

anonymous · Answer

$$3\sqrt{10}+7\sqrt{15}-6\sqrt{10}-4\sqrt{15}$$

meowlover17 · Answer

Yep

anonymous · Answer

$$=3\sqrt{15}-3\sqrt{10}=3(\sqrt{15}-\sqrt{10})$$

meowlover17 · Answer

So the answer 
 3 square root of 10 end root minus 3 square root of 15
  3 square root of 15 end root minus 3 square root of 10
 3 square root of 30 end root minus 3 square root of 20
 3 square root of 20 end root minus 3 square root of 30

meowlover17 · Answer

would be answer choice B.

anonymous · Answer

yes, right

meowlover17 · Answer

Thank you.

meowlover17 · Answer

I'll let you know if i need help later if your online. Appreciate it have a good one :D

anonymous · Answer

but if u go on it would be "
$$3\sqrt{5}(\sqrt{3}-\sqrt{2})$$

anonymous · Answer

did u become my fan :) ? @MeowLover17

meowlover17 · Answer

Of course

anonymous · Answer

i didn't take the notification, maybe it will come later ! Thanks anyway ;)

meowlover17 · Answer

Hah, no problem you will see it later, i'm gonna request some answers from you in a little appreciate your help.

meowlover17 · Answer

Actually i need some help with another lesson if you could help that would be great.

anonymous · Answer

sorry, but i got to go off now ! It's late here in europe now ! :((((

meowlover17 · Answer

All good, have a great night and thanks for your help once again.

anonymous · Answer

Thanks, you too ! I will help u anytime I'm on! Have a nice day/night ! :P

meowlover17 · Answer

You too.