OpenStudy (anonymous):

In simplified exponential notation, the expression a²·a -3·a=

4 years ago
OpenStudy (anonymous):

-3 is the exponent

4 years ago
OpenStudy (phi):

Did you learn that a*a is written in "short-hand" as $$a^2$$ and a*a*a is $$a^3$$ and a*a*a*a is $$a^4$$ ? in your question $a^2·a^{ -3}·a= ?$ you can change the order of multiplying, like this $a^2 \cdot a \cdot a^{-3}$ now what is a^2 ? it is the same as a*a $a·a·a·a^{-3}$

4 years ago
OpenStudy (phi):

you should also know that $a^{-3} \text{ is the same as } \frac{1}{a·a·a}$ your problem is $\frac{a·a·a}{a·a·a}$ any idea what that is ?

4 years ago