Question

express radical 18 + 5 radical 2 in simplest form. how?

Answer 1

\[\sqrt{18}+5\sqrt{2}\]
The way to solve this is to first find the factors of 18. Can you factorise 18?

Answer 2

Yes doesn't radical 18 end up being 3 radical 2?

Answer 3

it does! and you can add them together to get...

Answer 4

\[3\sqrt{2}+5\sqrt{2}=?\]

Answer 5

8 radical 2

Answer 6

You are correct :)

Answer 7

Thank you!

Answer 8

You're welcome :)