Garrett Burns

08/25/2024 · Junior High School

Find all the roots of each of the polynomial equations. \( \begin{array}{ll}\text { 9. } x^{3}-2 x^{2}-11 x-6=0 & \text { 10. } x^{3}-11 x^{2}+36 x-26=0 \\ \begin{array}{ll}\text { 11. } 2 x^{3}+x^{2}+4 x-15=0 & \text { 12. } x^{3}-5 x^{2}+39 x+45=0 \\ \text { 13. } 2 x^{3}+x^{2}-108 x-54=0 & \text { 14. } x^{3}+2 x^{2}-23 x+6=0 \\ \text { 15. } x^{3}+10 x^{2}+13 x-74=0 & \text { 16. } x^{4}+5 x^{3}+23 x^{2}+51 x=0 \\ \text { 17. } x^{4}+2 x^{3}-2 x^{2}-8 x-8=0 & \text { 18. } x^{4}-4 x^{3}-26 x^{2}+100 x+25=0\end{array} \\ \begin{array}{ll}\text { 19. } x^{4}+2 x^{3}-5 x^{2}-4 x+6=0 & \text { 20. } x^{4}-x^{2}-20=0\end{array}\end{array} ⿴ \begin{array}{l}\text { 166 }\end{array} \)