Thursday, March 26, 2009


Exponents tell you how many times a factor is multiplied.

x * x * x (x times x times x)

Can be written as x3 or x^3 , when we write the multiplication in this way, we call it an exponent.

To multiply exponents we add them, for example, consider we have

x2 * x3

what is this equal to?


why is this? Well if we write it out, it becomes obvious

x2 * x3


(x*x) * (x*x*x) or x5

if we have

5x2 * 2x3

Then the bottom numbers (or base numbers) are multiplied, while the exponents are added

5x2 * 2x3

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