Exponential and Logarithmic Equations

Solve: 7^-x = 49

• x = 1
• x = -1
• x = 2
• x = -2

Sovle for x:
5^{-3x - 1} = 25

• x = -1
• x = -4
• x = -3
• x = 1

Solve 3³ = 3^{4x + 2}

• x = ¼
• x = -¼
• x = ½
• x = -½

Solve 8 = 2^5x+7

• x = ⅘
• x = ¼
• x = -⅘
• x = -¼

8^3x+3 = 8⁶

• x=28
• x=3
• x=1
• x=12

Log with a base "e" (log_e) is the same thing as...

• "e"
• Natural Logarithm (LN)
• Common Logarithm (Log)
• Natural Log, base "e"
  LN_e

Using the change of base rule, what is this logarithm equivalent to?

• A
• B
• C
• D

Solve the equation for x.

• 5.352
• 4.326 E91
• 2.324
• 1.89

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

• x = 5
• x = -5
• x = 1/5
• x = -1/5

To solve 36 = 6^x, re-write 36 as what base and exponent?

• 3⁶
• 6³
• 6²
• 3¹²