This is what I tried:

Solving the above quadratic doesn't give me the right answers, unless I solved it wrong, but I don't think I did. What did I do wrong?

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- April 20th 2009, 10:16 PMPhireExponential function disguised as a quadratic

This is what I tried:

Solving the above quadratic doesn't give me the right answers, unless I solved it wrong, but I don't think I did. What did I do wrong? - April 20th 2009, 11:34 PMMiradoa little help
Fatal mistake, the way you are factoring the exponential pieces. You can not factor the 5 out like that, or the 1 like that.

- April 21st 2009, 05:42 AMmr fantastic
- April 21st 2009, 01:01 PMGamma
I came to the same conclusion today while at school, this problem has been bugging me for 24 hours. Me and 4 other grad students worked on it over lunch to no avail, no way the problem posted as is should be assigned in a pre calculus class, maybe a numerical methods course at best.

If it is as Mr. Fantastic suggested (and I hope it is) simply substitute and solve the quadratic to see how he got his factoring, then you are basically done.