Possible answer: yes; square roots of numbers are allowed. 2. Possible answer: 4, the sum of polynomials has the degree of the term with the greatest degree. 3. Possible answer: no; it . Click the links below to view the Student Answer Keys in Microsoft Word format. To learn more about the book this site supports, please visit its Information Center. McGraw-Hill Global . Explore Amazon Devices · Shop stocking stuffers · Explore top gifts · Fast Shipping.