Puzzles Forum: Avoiding Division By Zero

Avoiding Division By Zero

Posted by Moby Dick on 18/9/2009, 2:29 pm, in reply to "Li'l algebra..."

Just tried doing nothing more clever than simply expanding the right hand side of the expression:

[3*x^(-1)*y^(-6)]*[449*x / (x^(-1)*y^(-3)) + x^2*y^2 / y^(-1)]

Expands to:

1350*x/y^3

Doing the algebra from here:

2x^3 = 1350x/y^3

2x^2 = 1350/y^3

x^2 = 1350/2y^3

x = sqrt(1350/2y^3)

Message Thread:

Li'l algebra... - Denis Borris 18/9/2009, 2:26 am
- Avoiding Division By Zero - Moby Dick 18/9/2009, 2:29 pm
  - Re: Avoiding Division By Zero - Moby Dick 18/9/2009, 2:36 pm
    - Re: Avoiding Division By Zero - Denis Borris 18/9/2009, 3:13 pm
      - A Picture Tells A Thousand Words... - Moby Dick 18/9/2009, 3:52 pm
        
        Thanks, MD. - Denis Borris 18/9/2009, 5:51 pm
- Re: Li'l algebra... - Moby Dick 18/9/2009, 9:16 am
  - Re: Li'l algebra... - Denis Borris 18/9/2009, 1:19 pm
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