Question

PLEASE HELP!

Answer 1

C

Answer 2

@Caspia do you mind to explain :( ?

Answer 3

\[(\sqrt{450}+\sqrt{20})\div \sqrt{2} = \sqrt{450}/\sqrt{2}+\sqrt{20}/\sqrt{2}\]

Answer 4

\[\sqrt{225\times2}/\sqrt{2}+\sqrt{5\times4}/\sqrt{2}\]

Answer 5

\[= 15 +\sqrt{5\times2\times2}/\sqrt{2} = 15 + \sqrt{10}\]

Answer 6

Is that ok now? :-\

Answer 7

Yes I understand it now! THANKS A LOT @Caspia

Answer 8

WELCOME ^_^ !