sarakuthS sarakuthS
  • 13-05-2017
  • Mathematics
contestada

What is the solution to the equation 21^x-3=14?
x=-2.133
x=-1.846
x=3.867
x=4.154

Respuesta :

lisee7 lisee7
  • 13-05-2017
X-3= log 21(14)
X= log 21(14) /3
X= 3.86682
X= 3.867
Answer Link
eurydike eurydike
  • 11-05-2019

Answer:

[tex]3.866[/tex]

Step-by-step explanation:

The given equation can be solved by using the log function.

[tex]21^{x-3} = 14\\(x-3) log 21 = log 14\\x-3 = \frac{log 14}{log 21} \\x-3 = 0.866\\x = 3.866\\[/tex]

Answer Link

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