Techniques For Solving Exponential Equations Part 2

This lesson shows how to solve exponential equations when the powers cannot be changed into powers with the same base. This is the second part of a two part lesson. This lesson was created for the MHF4U Advanced Functions course in the province of Ontario, Canada.

[manuelfalzoialcantara]

Excellent exposition! I advice the last example, to try make substution variable for 4 power x, so avoiding overwhelming expression!

[AlRichards]

@Absolyst I can't seem to post a reply, but the basic idea is that you factor out a 3 from the 3^(x + 1) and then solve it like example 4 from the video.

[AlRichards]

Can you please clarify more exactly what you are asking of me?

[Absolyst]

How would you solve 3^(2x) + 3^(x+1) = 4?

[Omgawdzbored]

Not quite clear on one little detail. how would 2^2x = 2^2^x?

[AlRichards]

You can't put a link in a comment so you'll have to add a 'w" at the beginning. Otherwise, Part 1 can be found here:

[Omgawdzbored]

Oh nvm. I think i'm good with it. 2x^2*2x*x= 2x^2?

[skshooter]

I want these videos sent to me i will pay.