Thanks for ur kind help!!!

Yes i could use the expression in terms of Rootof. But i am further using this expression in MATLAB program to do further analysis.But my problem is MATLAB doesnt detect Rootof function,thus making my progress to hault.

Is there any option to make MATLAB understand Rootof function. 

Thanks for ur kind help!!!

Yes i could use the expression in terms of Rootof. But i am further using this expression in MATLAB program to do further analysis.But my problem is MATLAB doesnt detect Rootof function,thus making my progress to hault.

Is there any option to make MATLAB understand Rootof function.