From the course: Preparing for the GMAT

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Exponent rules

Exponent rules

From the course: Preparing for the GMAT

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Exponent rules

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- [Instructor] There are several exponent rules you will need to know for the GMAT. So in this video we'll go through those rules and look at an example of each. Okay. Well first of all, what is an exponent? Hopefully you know that, like x squared is the same thing as x multiplied by x so like two squared would be two times two. Okay, first rule I want to show you is anything to the zero power is one. So if I said, what is two to the zero? That would be one. One thousand to the zero would also be one. So any number raised to the zero power is one as far as we're concerned. The power rule would be something like this if I had x to the third raised to the fourth power in this case, with the parathesis, I would multiple those exponents. So this would be x to the 12th. If I was dealing with negative exponents, let's say that I had x to the negative two, would immediately want to rewrite that as one over x squared. Give you another example just to make sure you get that, what about x to…

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