Question

Using the properties of exponents and logarithms, find the value of x in 19+2 in x=25

Answer 1

x = e³

Explanation:

Using the property of logarithms

•
`log_(b)` x = n ⇔ x =
`b^(n)`

Given

19 + 2lnx = 25 ( subtract 19 from both sides )

2lnx = 6 ( divide both sides by 2 )

lnx = 3 [ note lnx =
`log_(e)` x ]

x = e³

Answer 2

The correct answer is D 20.09

Explanation: