how can you tell if an answer will be positive or negative for negative eponents

Guest Apr 7, 2017

#1**+1 **

you cant. Lets take for example an equation of the form a_{0}+a_{1}*x^{t1}+a_{2}*x^{t2}+a_{3}*x^{t3}..........a_{n}*x^{tn}=0,

where t_{1} 2 3<..... n<0

Now multiply by x^{-t1} and get: a_{0}*x^{-t1}+a_{1}+a_{2}*x^{t2-t1}+a_{3}*x^{t3-t1}+a_{4}*x^{t4-t1}+a_{5}*x^{t5-t1}..........a_{n}*x^{tn-t1}=0

the equation is exactly the same, no solution was added (you can check it)

So it doesnt tell anything about the answer.

Ehrlich
Apr 7, 2017