Question

Find all real roots of the polynomial. t^4+t^3+2t^2+4t-8

Answer 1

using rational root theorem for finding possible rational roots will be a good start

Answer 2

\[\pm8 ,\pm4 , \pm2 , \pm1\] are possible rational roots

Answer 3

i would suggest using ruffini's rule twice the use quadratic formula

Answer 4

Thank you!