Precalculus Examples

Solve for x log base 5 of x=-3
Step 1
Rewrite in exponential form using the definition of a logarithm. If and are positive real numbers and , then is equivalent to .
Step 2
Solve for .
Tap for more steps...
Step 2.1
Rewrite the equation as .
Step 2.2
Simplify .
Tap for more steps...
Step 2.2.1
Rewrite the expression using the negative exponent rule .
Step 2.2.2
Raise to the power of .
Step 3
The result can be shown in multiple forms.
Exact Form:
Decimal Form: