Make a Routh table.We encounter a row of zeros on the s3 row. The even polynomialis contained in the previous row as 6s4 þ 0s2 þ 6. Taking the derivative yieldsChapter 6 Solutions to Skill-Assessment Exercises 1724s3 þ 0s. Replacing the row of zeros with the coefficients of the derivative yieldsthe s3 row.We also encounter a zero in the first column at the s2 row.We replace thezero with e and continue the table. The final result is shown now as