Solving Logarithmic Equations

1
Solving Logarithmic Equations

• TS Making decisions after reflection and
  review.
• Obj Be able to solve equations involving
  logarithms
• Warm-Up Solve for x
• 4x 64
• log2x log2x 6

2
Solve Each Equation

• (½)x 32 2) ex 2 3
• 3) 2x 0

3
Solve Each Equation

• 4) 3x 2 21 5) 22x 2x 6 0

4
Solve Each Equation

• 6) 8-2 x 431 7)e2x 3ex 2 0

5
Solve Each Equation

1. 2log53x 4 2)log3(5x 1) log3(x7)

6
Solve Each Equation

• 3) 5 2lnx 4 4) ln(x 2) ln(2x 3) 2lnx

7
Solve Each Equation

• 5) log3x log3(x 8) 2

8
You try use your calculator to check your
answers

• e2x 5ex 6 0
• ln(3x 5) 8
• logx25 2
• lnx ln2 0
• log4(x 20) log4(x) -16
• 1000e-4x 75