If there is no base in a logarithm what does it automatically equal?
10
what is the equation for logarithmic form?
logba=x
what is the first step when solving logarithmic equations?
Condensing the logarithm
log33 = log3x - log33
x= 9
In a logarithm subtraction goes with what?
Division
what is the formula for exponential form?
bx=a
If two logs have the same base then what can you do?
cross them out and solve like a regular math equations.
log5 + log2 = x
x= 1
In a logarithm adding goes with what?
Multiplication
convert into exponential form: log39=2
32=9
At the end when checking your answer what can NOT be in the logarithmic equation?
A negative
logx16 = 4
x= 2
Where should you move the exponent too?
logkmw
the front: wlogkm
convert into logarithmic form:132=168
log13168=2
Solve: log9(6-3w)=log9(-2w)
No Solution
x = log84
x= 2/3
x= 0.6
Condense: 2log38=
log382=log364
convert into log form: 83= 6
log86=3
Solve: log5 + log20 = x
x= 2
2x+1= 32
x= 4
Evaluate.
64
Evaluate
UNDEFINED
A logarithm of a negative number does not existnin set of real numbers.
logc (x+2) = logc (x-1) + logc (x-2)
x=4
9x-1= 81x
x= -1