Logarithms

log x = -3

• x=10
• x=.001
• x=3
  x=.01
• 3

Solve: 9^8-x = 27^x-3

• x = 5
• x = -5
• x = 1/5
• x = -1/5

Solve: 2^x = 4^x+1

• x = -2
• x = 2
• x = -3
• x = 3

Solve:
log x + log 8 = 2 

• 10
• 12.5
• 15
• 17.5

Solve for x:
log  (2x) = 2

• 100
• 50
• 25
• 20

What is the value of x?

• 2

• 15

• 20

• 33

Solve for x: 

• 10001
• 999
• No Solution
• 3^-12+

log₂(x + 2) + log₂x  = 3

• -4, 2
• -2, 4
• 2 ;  -4 is extraneous
• 1 ;  -3 is extraneous

Write the expression as a single logarithm.   Then simplify if possible.
log 6 - log 3 + 2 log 7

• log 98
• log 78
• log 56
• log 45

Write the expression as a single logarithm.   Then simplify if possible.
log₅3 + log₅6 + log₅9

• log₅69
• log₅56
• log₅162
• log₅98