Carl Horowitz

**University of Michigan**

Runs his own tutoring company

Carl taught upper-level math in several schools and currently runs his own tutoring company. He bets that no one can beat his love for intensive outdoor activities!

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The square root of 9 plus 16. We have to add inside so we end up with the square root of 2. Square root of 25 is simply 5. If we were to try to split this up, we would get the square root of 9 plus the square root of 16. Square rot of 9 is 3, square root of 16 is 4 and we end up getting 7.

What we show here is that we cannot spit up a sum if we’re dealing inside of a square root. Really the square root of x plus y is just the square root of x plus y. there’s nothing we can do with it so don’t try to split it up because you’re not going to get the right answer.