How to solve this system?

[COB160]

(07-06-2017 10:41 PM)Han Wrote:  As Helge mentioned, this one can be done simply (since you are solving for \( p_1 \) and \( p_2 \) ). On the HP Prime (make sure you are in the CAS view), just type in the right hand side like you see it and press Enter. Then use the simplify key:

I get the same result! But by putting this two outcome >0, it outputs m_1>r>m_2, instead of m_2>r>m_1. I think I should make assumption on parameters (using solve function?) in order to get the second solution; am I wrong?