Reference
Practice
Premium
Log In
English
English ✔
Español
日本語
简体中文
繁體中文
Negative Power Rule
Reference
> Algebra: Exponents
Description
The Negative Power Rule states that:
x
−
a
=
1
x
a
{x}^{-a}=\frac{1}{{x}^{a}}
x
−
a
=
x
a
1
Examples
x
−
7
{x}^{-7}
x
−
7
1
Use
Negative Power Rule
:
x
−
a
=
1
x
a
{x}^{-a}=\frac{1}{{x}^{a}}
x
−
a
=
x
a
1
.
1
x
7
\frac{1}{{x}^{7}}
x
7
1
Done
1/x^7
English
Negative Power Rule