How do you add #3sqrt2+4sqrt2#?

Question

9509 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2015-03-24T02:37:39

You consider #sqrt(2)# as a fixed quantity that you do not change and simply add the multiplier:
#3sqrt(2)+4sqrt(2)=(3+4)sqrt(2)=7sqrt(2)#