Question

Find the Zeros Using Descartes' Rule of Signs
p(x) = 2x3 – x2 + 4x – 7

p(x) = x3 – x2 – x – 3

p(x) = x5 + 4x3 - x2 + 6x

Answer 1

p(x) = 2x3 – x2 + 4x – 7

p(x) = x3 – x2 – x – 3

p(x) = x5 + 4x3 - x2 + 6x