How do you convert 7 to the square root of 2 into a decimal?

Question

Also, how do you convert 3 to the square root of 8 into a decimal?

Thanks

Answer 1

PLEASEEE Help. I need the answer and explanation please.

Answer 2

Look for a key on your calculator that looks like a power,
either y^x or perhaps a^b

enter the following sequence

7
^x
( √2)
=

you should get 15.6728...

do the 2nd in the same way