MYTUTOR SUBJECT ANSWERS

959 views

Using logarithms solve 8^(2x+1) = 24 (to 3dp)

Using the laws of logs you can see that if you log both sides of the equation you get: 

(2x+1)*log(8) = log(24) 

Dividing both sides of the equation by log(8) you get: 

2x+1 = log(24)/log(8)

Then it is a simple case of solving for x: 

x = 0.5*(((log(24)/log(8))-1)

x = 0.264

Graham R. A Level Maths tutor, GCSE Maths tutor, A Level Physics tuto...

11 months ago

Answered by Graham, an A Level Maths tutor with MyTutor


Still stuck? Get one-to-one help from a personally interviewed subject specialist

324 SUBJECT SPECIALISTS

£20 /hr

Hannah B.

Degree: Natural Sciences (Masters) - Nottingham University

Subjects offered:Maths, Science+ 2 more

Maths
Science
Physics
Chemistry

“2nd-year Natural Sciences student at the University of Nottingham. Looking forward to meeting you!”

MyTutor guarantee

£20 /hr

Praveenaa K.

Degree: Mathematics (Masters) - Bristol University

Subjects offered:Maths, Science+ 4 more

Maths
Science
Further Mathematics
English
Chemistry
-Personal Statements-

“Top tutor from the renowned Russell university group, ready to help you improve your grades.”

Roma V. A Level Maths tutor, 13 Plus  Maths tutor, GCSE Maths tutor, ...
£26 /hr

Roma V.

Degree: Mathematics, Operational Research, Statistics and Economics (Bachelors) - Warwick University

Subjects offered:Maths, Further Mathematics + 1 more

Maths
Further Mathematics
Economics

“Top tutor from the renowned Russell university group, ready to help you improve your grades.”

About the author

Graham R. A Level Maths tutor, GCSE Maths tutor, A Level Physics tuto...

Graham R.

Currently unavailable: for new students

Degree: Geophysics with Geology (Bachelors) - Durham University

Subjects offered:Maths, Physics+ 1 more

Maths
Physics
Geography

“About Me I am a 3rd year Geophysics and Geology student at Durham University. Ever since I was small Maths seemed to click with me and I always found it easy to explain. These skills came in use when I was asked to be an academic ment...”

You may also like...

Posts by Graham

Using logarithms solve 8^(2x+1) = 24 (to 3dp)

y = x*(x-2)^-1/2. Prove dy\dx = (x-4)/2*(x-2)^3/2

Other A Level Maths questions

Integrate the following equation to find y: dy/dx = 3x^2 + 2x + 6

What is a stable solution and what is dominance?

Solve: x^2-7x+6=0

How do you differentiate a^x?

View A Level Maths tutors

We use cookies to improve your site experience. By continuing to use this website, we'll assume that you're OK with this. Dismiss

mtw:mercury1:status:ok