Problema Solution
List the potential rational zeros of the following function. Please explain.
f(x)=-2x^3+4x^2-3x+8
Answer provided by our tutors
Use Descartes's rule of signs to determine how many positive and how many negative zeros the function has.
f(x)=-2x^3+4x^2-3x+8
There are 3 sign changes in the "positive" case. This number "3" is the maximum possible number of positive zeroes
f(-x)=2x^3+4x^2+3x+8
There are 0 sign changes in the "negative" case. There is no negative zeroes