When finding the product property what must always be the same?
The Base
log101=0
10^0=1
What is 5^3=125 in log form?
log_5(125)=3
What is x if log_5 (x-7)=1?
x=12
log5+3logx
what operation do you do when you add logs?
You multiply
log(2x)=5x
105x=2x
What is b2=7 in log form?
logb 7=2
What is x if log_10 (x-10)=1?
x=20
condense: 5logh-8logk
logh5/k8
what operation do you do when you subtract logs?
You divide
log8 1=0
80 =1
What is 2a=12 in log form?
log212=a
What is x if log6(2x-4)+log6(4)=log640?
7
expand: logb12k/y3
When condensing and expanding, what are 2 main things you need to do?
1. Find the power property
2. Find the product/quotient property
log2 1/16 = -4
2-4 = 1/16
What is 35=x in log form?
log3x=5
What is x if log5(2x+3)=3?
61
condense: 4logc+6logy-3logs
logc4y6/s3
what is the difference between ln and log bases?
ln(e) log(10)
log4 x=7
47 =x
What is 14-2=t in log form?
log14t=-2
What is x if log(2x+1)=2?
49.5
expand: log45x3y
log45+3log4x+log4y