How do you add #sqrt50 - sqrt8#?

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Answer 1 · 2015-04-02T04:48:49

The answer is #3sqrt(2)#

If given: #sqrt(50) - sqrt(8)#

We can split the numbers inside the radical into factors:
#sqrt(25*2) - sqrt(4*2)#

Since #25# and #4# are respectively the squares of #5# and #2#.
#5sqrt(2) - 2sqrt(2)#

Combining like terms:
#3sqrt(2)#

I hope that was helpful.