Problema Solution
using descartes rule for sign changes, how many positive and negative real roots are available for 6x^(3)+25x^(2)-24x+5
Answer provided by our tutors
6x^(3)+25x^(2)-24x+5
There are two sign changes in the "positive" case.
Hence there are two positive roots.
f(-x)= --6x^3+25x^2+24x+5.
There is only onr sign chnage in negative case.
Hence there is one negative root.
For the given equation there are two positive roots, one negative root.