I need help with the matlab code for a root locus plot to determine the damping value value of c1 required to give a dom

[answerhappygod]

I need help with the matlab code for a root locus plot to
determine the damping value value of c1 required to give a dominant
root pair having a damping ratio of ξ=0.707
m1=250 kg
m2=40 kg
k1=15000 N/m
PLEASE DO NOT COPY PASTE ANSWERS FROM SIMILAR QUESTIONS
k2=150000 N/m
use matlab to draw the root locus plot to determine the damping
value of c1 required to give a dominant root pair having a damping
ratio of ξ=0.707
𝑋1(𝑠)𝑌(𝑠)=𝑘2(𝑐𝑠+𝑘1)/(𝑚1𝑚2𝑠4+𝑠3𝑐(𝑚1+𝑚2)+𝑠2(𝑚2𝑘1+𝑚1(𝑘1+𝑘2))+𝑐𝑘2+𝑘1𝑘2)
𝑋1(𝑠)𝑌(𝑠)=𝑘2(𝑚1𝑠2+𝑐𝑠+𝑘1)/(𝑚1𝑚2𝑠4+𝑠3𝑐(𝑚1+𝑚2)+𝑠2(𝑚2𝑘1+𝑚1(𝑘1+𝑘2))+𝑐𝑘2+𝑘1𝑘2)