Algebra Examples

Evaluate log base 9 of 4
Step 1
Rewrite using the change of base formula.
Tap for more steps...
Step 1.1
The change of base rule can be used if and are greater than and not equal to , and is greater than .
Step 1.2
Substitute in values for the variables in the change of base formula, using .
Step 2
Rewrite as .
Step 3
Expand by moving outside the logarithm.
Step 4
Rewrite as .
Step 5
Expand by moving outside the logarithm.
Step 6
Cancel the common factor of .
Tap for more steps...
Step 6.1
Cancel the common factor.
Step 6.2
Rewrite the expression.
Step 7
The result can be shown in multiple forms.
Exact Form:
Decimal Form: