Get detailed and accurate answers to your questions on IDNLearn.com. Get accurate and detailed answers to your questions from our knowledgeable and dedicated community members.

solve each logarithmic equation. Round your answer to two decimal places.
log4 16 = x
my attempt:
log4 16 (x+x) = x
--
x
log 4 (x+16) = 1
(x + 16) = 1
x + 16/1 =17
x+ 16 = 17
x= 8/9


Sagot :

Answer:

  • x = 2

Step-by-step explanation:

Given equation

  • [tex]log_416=x[/tex]

Use the property of logarithm

  • [tex]log_ab=c[/tex] ⇒ [tex]b = a^c[/tex]

Apply to the given equation

  • [tex]16 = 4^x[/tex]
  • [tex]4^2=4^x[/tex]
  • [tex]2 = x[/tex]
  • [tex]x=2[/tex]

Let's see

[tex]\\ \rm\Rrightarrow log_416=x[/tex]

[tex]\\ \rm\Rrightarrow 16=4^x[/tex]

[tex]\\ \rm\Rrightarrow 4²=4^x[/tex]

[tex]\\ \rm\Rrightarrow x=2[/tex]

Done!