How do you simplify #8sqrt(11)-3sqrt11#?

1 Answer

We're taking 3 of something away from 8 of the same something, so we have 5 somethings left:


The answer here is to realize that we have 8 somethings (they happen to be square roots but don't let that throw you off) and we're subtracting 3 of the same something. So we can simply take 3 somethings away from 8 somethings and arrive at 5 somethings.