imherebro
imherebro imherebro
  • 18-02-2020
  • Mathematics
contestada

Can someone help me with these and can give a explanation on how to do these thank you!

Can someone help me with these and can give a explanation on how to do these thank you class=

Respuesta :

jimrgrant1 jimrgrant1
  • 18-02-2020

Answer:

x = 2 and x = 2

Step-by-step explanation:

Using the rule of logarithms

[tex]log_{b}[/tex] x = n ⇔ x = [tex]b^{n}[/tex]

Given

[tex]log_{x}[/tex] 8 = 3 ⇒ 8 = x³

Note 8 = 2³ = x³  ⇒ x = 2

Given

[tex]log_{5}[/tex] 25 = x ⇒ 25 = [tex]5^{x}[/tex]

25 = 5² = [tex]5^{x}[/tex] ⇒ x = 2

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