# Power Rules of Exponents

There are six power rules in exponentiation and here is the list of the formulas in algebraic form.

### Power Rule

$\large {(b^m)}^n \,=\, b^{mn}$

### Power Zero Rule

$b^0 \,=\, 1$

### Negative Power Rule

$\large b^{-m} \,=\, \dfrac{1}{b^m}$

$\large b^{\frac{1}{n}} \,=\, \sqrt[\displaystyle n]{b}$

### Rational Power Rule

$\large b^{\frac{m}{n}} \,=\, \sqrt[\displaystyle n]{b^m}$

### Power 1 Rule

$\large b^1 \,=\, b$

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