Cool math Prealgebra Help Lessons: Exponents

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Coolmath Prealgebra
Exponents lesson 3 - Exponent Rule #2 (page 1 of 5)
---- This prealgebra lesson explains the second rule of exponents.


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What if we divide

There is a rule for this, but, it's way better to understand what's going on than to just try to crunch the rule.

Let's write out what each one means:

x^5 / x^2 explained

Remember that

... Just like

...

So, we can cancel some 1's:

x^5 / x^2 = x^3

TRY IT:

Simplify

by writing out what each one means:

Continued on the next page

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