Definition of a logarithm. Solve the equation log4 (x + 20) = 3

log4 (x + 20) = 3 Write the equation in power form.

4^3 = x + 20 Solve 4^3

64 = x + 20 Subtract 20

x = 44 Answer

Questions:

Part 1: Definition of a logarithm.

Part 2: Solve the equation log 4 (x + 20) = 3

Answers:

Part 1:

Logarithm - is a amount that represents a power to a fixed number has to be raised to make the given number.

Part 2:

Solve the log 4 (x + 20)

log₄ (x+20) = 3

3⁴=x+20

64=x+20

x=64-20

x=44