How do you understand the operations of equations and their solutions?

[myusernameis]

hahaha uhhhh operations of e

Homework Statement

i'm reading this online math help thing, and i can't seem to memorize how/why this is

Homework Equations

how did they get this?edit* how did they get the answer from the left to the right side of the arrow?

The Attempt at a Solution

i know this is prob. the beginner stuff, but i forgot this from a long time ago. and don't worry, this is only one step of the equation, not the whole answer.

Thanks!

 

[gabbagabbahey]

Is there a specific step(s) that you don't understand? All they are really doing is integrating both sides of the equation with respect to x and then isolating v(x) after.

 

[NoMoreExams]

They multiplied both sides by $$x^4$$

 

[myusernameis]

Is there a specific step(s) that you don't understand? All they are really doing is integrating both sides of the equation with respect to x and then isolating v(x) after.

yeah, i got the integrating part, but how come in the next step, it went from x^-4 to x^4?


thanks!

 

[NoMoreExams]

I just told you, they multiplied both sides by x^4 ... and x^(-4) * x^4 = 1

 

[myusernameis]

I just told you, they multiplied both sides by x^4 ... and x^(-4) * x^4 = 1

oh haha yeah, thanks!


I was talking to "gabbagabbahey" in my last response though..