A really dumb math question

  • Thread starter Roscoe1989
  • Start date
  • #1
Roscoe1989
23
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Homework Statement


Ok, so I have a=2bc^3 and b= c/f but I want to get rid of the b's.


Homework Equations



So I know I do a=2(c/f)c^3

The Attempt at a Solution



This is where I get lost (and feel stupid). Does this get simplified to (2c^4)/f? Or, is does it stay the same because the (c/f) is in brackets. I have to differentiate after, which is in itself another problem.
Thanks!
 

Answers and Replies

  • #2
berkeman
Mentor
64,170
15,380

Homework Statement


Ok, so I have a=2bc^3 and b= c/f but I want to get rid of the b's.


Homework Equations



So I know I do a=2(c/f)c^3

The Attempt at a Solution



This is where I get lost (and feel stupid). Does this get simplified to (2c^4)/f? Or, is does it stay the same because the (c/f) is in brackets. I have to differentiate after, which is in itself another problem.
Thanks!

The bolded answer is correct. c * c^3 = c^4
 
  • #3
Roscoe1989
23
0
Booya! Thank you, berkeman!
 

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