Variables

a, b
Positive real numbers
m, n
Itegers
1.
Zero exponent
a0=1a^0=1
2.
Multiplication rule
aman=am+na^m \cdot a^n=a^{m+n}
3.
Division Rule
aman=amn\dfrac{a^m}{a^n}=a^{m-n}
4.
Power of power rule
(an)m=anm\left(a^n\right)^m=a^{nm}
5.
Negative exponent
an=1ana^{-n}=\dfrac{1}{a^n}
6.
Negative exponent of a fraction
(ab)n=(ba)n\left(\dfrac{a}{b}\right)^{-n} = \left(\dfrac{b}{a}\right)^n
7.
Power of a product
(ab)n=anbn\left(ab\right)^n=a^n b^n
8.
Power of a fraction
(ab)n=anbn\left(\dfrac{a}{b}\right)^n=\dfrac{a^n}{b^n}