Solving Equations with Logarithms Pt 2

In a three part video I do many examples of solving equations using logarithms to move the variable out of the exponent. In part two we remove logarithms from the equation to solve for X.

Here are my other PreCalculus lessons involving Logarithms

[bcoll]

Is there any way to like all of your videos with one click? Reason being is that I have yet to find one of your videos that have not helped me in one or more ways. Thank you Mr. Tarrou!

[ThatFangurlTho]

I love the "Go do your homework" at the end of the videos, because I usually watch your videos as I'm doing my homework XD

[tylerpenkofski]

Best guy on the web for math help, hands down. I've learned more in the past 30 minutes than i have in 7 classes of pre-calc.

[scottcourtney]

Lets just say my professor's first language is NOT english! Your video lessons are saving my grade. For english there is Wiki, and for math there is you. Thanks again you rock.

[karlabarrios]

Your videos have taught me more in a few minutes than my teacher has taught  me all semester. Thank you so much for your help!

[vikesboy]

42 year old back in school. Been 16 years since Algebra. In a precalc class and YOU are the best I've found on here. Thank you! Your videos are awesome!

[profrobbob]

Oh the joys of being a YouTube teacher!!! Thank you again for being such a loyal subscriber:)

[durragas]

Dude! The bit about making the equation an exponent to the number of the base is awesome. I'm studying online from home and videos like this one save me so much pain. THanks for taking the time!

[alexandrajamie]

If you're a professor in a school, they're lucky enough to have you teach them. I've been watching your videos since last year and if I never found out about your channel, I wouldn't be enjoying Math. Thank you so much for making these kinds of videos! You are very entertaining and I'm glad that I was able to maintain my interest for Math because of the way you teach!! :D

[profrobbob]

You're welcome! Good for you to brush up "before" you start your class and I'm certainly happy that you choose my videos to do it with:) I hope you will continue you watch and share these videos with others who may benefit:D

[profrobbob]

Well I did intend on using the same signs as the original problem but my hand disagreed:) My work was consistent with what I wrote...so no problem. I did catch at around minute 4 I changed the sign in my example:) Thank you very much for watching and subscribing. I appreciate the support very much:)

[profrobbob]

Another Closed Captioned math lesson... BAM!!!

[profrobbob]

Happy I could help and that you landed on my channel for it...and good luck with that class!

[yonipearlman]

after 4 semesters of watching your videos and doing countless numbers of hours wrapped in math I just wanted to say "BAM!" you are the best and thanks for everything you do!!

[harmoniumkane]

Came here for the math, stayed for the pumpkin pie.

[profrobbob]

The easiest place to ask questions is actually through my Facebook dot com/ProfRobBob fan page especially if they are a bit complicated. Sometimes I can get to questions right away, and sometimes I need a couple of days. It depends on my workload. You can also search my channel for videos to topics you need help with.

[profrobbob]

Writing the expression as a radical or to the 1/2 is only a visual change and the issue of not being able to take an even root of a negative number is the same for both. This issue you bring up is why it is very important to plug your answers back into the original problem to make sure they work(don't cause the equation to be undefined). Great question:)

[britneysullivan]

You are the best math teacher I have ever seen. I don't know if your students truly appreciate you, but I do. Thank you so much for being so awesome at what you do. This is the second year I randomly searched for math help and came to one of your videos which actually helped me. I'm so thankful to have found your videos. You're too awesome. If there were more teachers like you, God only knows what this country could be. Thank You again and again and again 

[profrobbob]

You can use either one whenever you like. LOG will save you a step if your problems have bases of 10 and LN will save you a step when there are bases of e (which equals roughly 2.718)

[profrobbob]

Your positive feedback really means A LOT and helps to keep me motivated:):):) Thank you! Please return the favor by spreading the word about my channel.